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Stars
• Stars indicate
• Code changes
• New sections
• New language or
• Section relocation
Based on the 2018
UPC & IPC Codes
Plumbing Code Training
2018 IPC
Chapter 2
Definitions
ACCESSIBLE
• A site, building, facility
or portion thereof that
complies with Chapter
11 of the International
Building Code.
What is wrong with this picture?
BUILDING
• Any structure utilized
or intended for
supporting or
sheltering any
occupancy
FIXTURE FITTING
• Supply fitting
• A fitting that controls the
volume, direction of flow
or both of water and is
either attached to or
accessed from a fixture,
or is used with an open or
atmospheric discharge
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FULL-OPEN VALVE
• A water control or shutoff component in the
water supply system piping that, where adjusted
for maximum flow, the flow path through the
component’s closure member is not a restriction
in the component’s through-flow area.
PRESS-CONNECT JOINT
• A permanent mechanical joint incorporating an
elastomeric seal or an elastomeric seal and
corrosion-resistant grip ring.
• The joint is made with a pressing tool and jaw or ring
approved by the fitting manufacturer.
PUBLIC SWIMMING POOL
• A pool, other than a residential pool, that is intended
to be used for swimming or bathing and is operated
by an owner, lessee, operator, licensee or
concessionaire, regardless of whether a fee is
charged for use
REGISTERED DESIGN PROFESSIONAL
• An individual who is registered or licensed to practice
their respective design profession, as defined by the
statutory requirements of the professional registration
laws of the state or jurisdiction in which the project is
to be constructed.
SWIMMING POOL
• A permanent or temporary structure that is intended
to be used for swimming, bathing or wading and that
is designed and manufactured or built to be
connected to a circulation system.
• A swimming pool can be open to the public
regardless of whether a fee is charged for its use or
can be accessory to a residential setting where the
pool is available only to the household and guests of
the household
2018 UPC
Chapter 2
Definitions
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Appliance
• A device that utilizes an energy source to produce light,
heat, power, refrigeration, air conditioning, or
compressed fuel gas.
Aspirator
• A fitting or device
supplied with water or
other fluid under
positive pressure that
passes through an
integral orifice or
constriction, causing
a vacuum.
ITM
Backwater Valve 710.6
ITM
204.0 Bathroom Group
• Any combination of fixtures, not to exceed one
water closet, two lavatories, either one bathtub, or
one combination bath/shower, and one shower,
and may include a bidet and an emergency floor
drain.
Urinal was removed
from the definition.
Category 1
• Activities, systems, or equipment whose failure
is likely to cause major injury or death to
patients, staff, or visitors
Category 2
• Activities, systems, or equipment whose failure
is likely to cause minor injury to patients, staff, or
visitor
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Category 3
• Activities, systems, or equipment whose failure
is not likely to cause injury to patients, staff, or
visitors, but can cause discomfort.
Category 3 Vacuum System
• A Category 3 vacuum distribution system that can be
either a wet system designed to remove liquid, air-gas,
or solids from the treated area; or a dry system designed
to trap liquids and solids before the service inlet and to
accommodate air-gas only through the service inlet.
Category 4
• Activities, systems, or equipment whose failure
would have no impact on patient
Combustible Material
• A material that, in the
form in which it is used
and under the conditions
anticipated, will ignite and
burn; a material that does
not meet the definition of
noncombustible. [NFPA
54:3.3.64.1]
Critical Care Area
• A room or space in which failure of equipment or
a system is likely to cause major injury or death
to patients or caregivers (Category 1).
Direct-Vent Appliances
• Appliances that are
constructed and installed
so that all air for
combustion is derived
directly from the
outdoors and all flue
gases are discharged to
the outdoors.
Is this a direct Vent furnace?
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DIRECT VENT WATER HEATER
ITM
Direct-Vent Appliances. Appliances that are constructedand installed so that air for combustion is derived directly from the outdoors and flue gases are discharged to the outdoors.
Joint, Press-Connect
• A permanent mechanical joint incorporating an elastomeric seal or an elastomeric seal and corrosion resistant grip ring.
• The joint is made with a pressing tool and jaw or ring that complies with the manufacturer’s installation instructions.
Minimal Sedation (Anxiolysis)
• A drug induced state during which patients
respond normally to verbal commands.
• Although cognitive function and coordination
may be impaired, ventilatory and cardiovascular
functions are unaffected
Medical Air
• For the purposes of this code, medical air is air supplied
from cylinders, bulk containers, or medical air
compressors, or reconstituted from oxygen USP and oil-
free, dry nitrogen NF.
Medical Support Gas
• Nitrogen or instrument air used for any medical support
purpose (e.g., to remove excess moisture from
instruments before further processing, or to operate
medical-surgical tools, air-driven booms, pendants, or
similar applications) and, if appropriate to the
procedures, used in laboratories and are not respired as
part of any treatment.
Nitrogen, NF
• Nitrogen complying as a minimum,
with nitrogen NF.
Nitrogen NF is used as a displacement medium for sterile equipment, A non-oxidizing displacement medium in pharmaceutical vials, And as a propellant in pressurized aerosol type dispensers. It is also used as a coolant for carbon dioxide surgical lasers and a source of pneumatic pressure to power gas operated medical devices
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Patient Care Space
• Any space of a health care facility wherein patients are
intended to be examined or treated
Category 1 Space. Space in which failure of equipmentor a system is likely to cause major injury or deathof patients, staff, or visitors. [NFPA 99:3.3.127.1]Category 2 Space. Space in which failure of equipmentor a system is likely to cause minor injury topatients, staff, or visitors. [NFPA 99:3.3.127.2]Category 3 Space. Space in which the failure ofequipment or a system is not likely to cause injury topatients, staff, or visitors but can cause discomfort.[NFPA 99:3.3.127.3]Category 4 Space. Space in which failure of equipmentor a system is not likely to have a physical impact onpatient care. [NFPA 99:3.3.127.4]
Plumbing System
• Includes all potable water, alternate water sources,
building supply, and distribution pipes; all plumbing
fixtures and traps; all drainage and vent pipes; and all
building drains and building sewers
Toilet Facility
• A room or space
containing not less
than one lavatory and
one water closet.
Wet Procedure Locations
• The area in a patient care space where a procedure is
performed that is normally subject to wet conditions
while patients are present, including standing fluids on
the floor or drenching of the work area, either of which
condition is intimate to the patient or staff
Chapter 3 General Regulations2018 IPC
Chapter 3
General Regulations
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303.4 Third-party certification
• Plumbing products and materials required by the code to
be in compliance with a referenced standard shall be
listed by a third-party certification agency as complying
with the referenced standards.
• Products and materials shall be identified in accordance
with Section 303.1.
303.5 Cast-iron soil pipe, fittings and components
• Cast iron soil pipes and fittings, and the couplings used
to join these products together, shall be third-party listed
and labeled.
• Third-party certifiers or inspectors shall comply with the
minimum inspection requirements of Annex A or Annex
A1 of the ASTM and CISPI product standards indicated
in the code for such products.
PROTECTION OF PIPES AND
PLUMBING SYSTEM
COMPONENTS
SECTION 305
305.1 Protection against contact
• Metallic piping, except for
cast iron, ductile iron and
galvanized steel, shall not
be placed in direct
contact with steel framing
members, concrete or
cinder walls and floors or
other masonry.
305.1 Protection against contact
• Metallic piping shall not be placed in direct contact with
corrosive soil.
• Where sheathing is used to prevent direct contact, the
sheathing shall have a thickness of not less than 0.008
inch (8 mil) (0.203 mm) and the sheathing shall be made
of plastic.
305.1 Protection against contact
• Where sheathing protects piping that penetrates
concrete or masonry walls or floors, the
sheathing shall be installed in a manner that
allows movement of the piping within the
sheathing.
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305.6 Protection against physical damage
• In concealed locations where piping, other than cast-iron
or galvanized steel, is installed through holes or notches
in studs, joists, rafters or similar members less than 11/4
inches (32 mm) from the nearest edge of the member,
the pipe shall be protected by steel shield plates.
PIPING SUPPORT
SECTION 308
308.6 Sway bracing
• Where horizontal pipes 4 inches and larger convey
drainage or waste, and where a pipe fitting in that piping
changes the flow direction greater than 45 degrees, rigid
bracing or other rigid support arrangements shall be
installed to resist movement of the upstream pipe in the
direction of pipe flow.
308.6 Sway bracing
• A change of flow
direction into a
vertical pipe shall not
require the upstream
pipe to be braced.
308.10 Thermal expansion tanks
• A thermal expansion
tank shall be supported
in accordance with the
manufacturer’s
instructions.
• Thermal expansion
tanks shall not be
supported by the piping
that connects to such
tanks.
Table Change
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Table Change314.2.2 Drain pipe materials and sizes
• Components of the condensate disposal system shall be
cast iron, galvanized steel, copper and copper alloy,
cross-linked polyethylene, polyethylene, ABS, CPVC,
PVC or polypropylene pipe or tubing.
2018 UPC
Chapter 3
General Regulations
301.2 Minimum Standards
• Pipe, pipe fittings, traps, fixtures, material, and devices
used in a plumbing system shall be listed (third-party
certified) by a listing agency (accredited conformity
assessment body) as complying with the approved
applicable recognized standards referenced in this code,
and shall be free from defects
301.2.1 Marking
• Each length of pipe and each
pipe fitting, trap, fixture, material,
and device used in a plumbing
system shall have cast, stamped,
or indelibly marked on it any
markings required by the
applicable referenced standards
and listing agency, and the
manufacturer’s mark or name,
which shall readily identify the
manufacturer to the end user of
the product.
301.2.2 Standards
• A list of plumbing standards that appear in specific
sections of this code is referenced in Table 1701.1.
• Standards referenced in Table 1701.1 shall be applied as
indicated in the applicable referenced section.
• A list of additional standards, publications, practices,
and guides that are not referenced in specific sections of
this code appear in Table 1701.2.
• The documents indicated in Table 1701.2 shall be
permitted in accordance with Section 301.3.
• An IAPMO Installation Standard is referenced in
Appendix I for the convenience of the users of this
code.
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309.4 Installation Practices
• Plumbing systems shall be installed in a workmanlike
manner which is in accordance with this code, applicable
standards, and the manufacturer’s installation
instructions.
309.4 Installation Practices
• All materials shall be installed so as not to adversely
affect the systems and equipment or the structure of the
building, and in compliance with all laws and other
provisions of this code.
• All plumbing systems shall be in accordance with
construction documents approved by the AHJ
309.5 Sound Transmission
• Plumbing piping
systems shall be
designed and
installed in
conformance with
sound limitations as
required in the
building code.
312.13 Exposed ABS Piping
• ABS piping shall not be exposed to direct sunlight.
– Exception: ABS piping exposed to sunlight that is
protected by water based synthetic latex paints.
314.4.1 Installation of Thermoplastic Pipe and
Fittings
• Trench width for thermoplastic sewer pipe shall be not
less than 1.25 times the outside diameter of the piping
plus 12 inches or the outside diameter of the piping plus
not less than 16 inches.
314.1 UPC Sewer Inside and Outside the Angle of
Repose
• Shall be 45° therefrom
• Or approved in accordance with 301.2 ITM
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319.0 Medical Gas and Vacuum Systems
• 319.1 General.
Such piping shall be in accordance with the requirements of
Chapter 13.
The Authority Having Jurisdiction shall require evidence of the
competency of the installers and verifiers
Fixtures
Chapter 4
2018 IPC Chapter 4
FIXTURES, FAUCETS AND FIXTURE FITTINGS
Major Table Change
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403.1.2 Single-user toilet facility and bathing room
fixtures
• The plumbing fixtures located in single-user
toilet facilities and bathing rooms, including
family or assisted use toilet and bathing rooms
that are required by Section1109.2.1 of the
International Building Code, shall contribute
toward the total number of required plumbing
fixtures for a building or tenant space.
403.1.2 Single-user toilet facility and bathing room
fixtures
• Single-user toilet
facilities and bathing
rooms, and family or
assisted-use toilet
rooms and bathing
rooms shall be
identified for use by
either sex.
403.1.3 Lavatory distribution
• Where two or more
toilet rooms are
provided for each sex,
the required number
of lavatories shall be
distributed
proportionately to the
required number of
water closets.
403.2 Separate facilities
• Exceptions:
4. Separate facilities shall not be required in
business occupancies in which the
maximum occupant load is 25 or fewer.
403.3 Employee and public toilet facilities
• For structures and tenant spaces intended for public
utilization, customers, patrons and visitors shall be
provided with public toilet facilities.
• Employees associated with structures and tenant spaces
shall be provided with toilet facilities.
No restrooms
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403.3 Employee and public toilet facilities
• The number of plumbing fixtures located within the
required toilet facilities shall be provided in accordance
with Section 403 for all users.
• Employee toilet facilities shall be either separate or
combined employee and public toilet facilities
Water and space saving design
403.3 Employee and public toilet facilities
• Exception:
Public toilet facilities shall not be required for:
1. Parking garages operated without parking
attendants.
405.3.1 Water closets, urinals, lavatories and bidets
• A water closet, urinal, lavatory or bidet shall not be set
closer than 15 inches from its center to any side wall,
partition, vanity or other obstruction.
What is the distance of X? What is the distance of Y?
405.3.1 Water closets, urinals, lavatories and bidets
• Where partitions or other obstructions do not separate
adjacent fixtures, fixtures shall not be set closer than 30
inches center to center between adjacent fixtures.
405.3.1 Water closets, urinals, lavatories and bidets
• There shall be not less
than a 21-inch
clearance in front of a
water closet, urinal,
lavatory or bidet to any
wall, fixture or door.
405.3.1 Water closets, urinals, lavatories and bidets
• Water closet compartments shall be not less than 30 inches in width and not less than 60 inches in depth for floor-mounted water closets and not less than 30 inches in width and 56 inches in depth for wall-hung water closets.
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405.3.1 Water closets, urinals, lavatories and bidets
• Exception:
• An accessible children’s
water closet shall be set
not closer than 12
inches from its center to
the required partition or
to the wall on one side.
405.3.5 Urinal partitions
• The horizontal dimension between walls or partitions at
each urinal shall be not less than 30 inches.
What is the distance of X? What is the distance of Y?
Each urinal utilized by the public or employees shall occupy a separate area with walls or partitions to provide privacy.
What is the distance from the partition to the center of each urinal
What ?
405.4.1 Floor flanges
• Floor flanges for water closets or similar fixtures shall be
not less than 0.125 inch thick for copper alloy, 0.25 inch
thick for plastic and 0.25 inch thick and not less than a 2-
inch caulking depth for cast iron or galvanized malleable
iron.
405.4.1 Floor flanges
• Closet screws and bolts shall be of copper alloy
405.5 Plumbing fixtures with a pumped waste
• Plumbing fixtures with a pumped waste shall comply with
ASME A112.3.4/CSA B45.9.
• The plumbing fixture with a pumped waste shall be
installed in accordance with the manufacturer’s
instructions.
Good Bad Or Indifferent?
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408.3 Bidet water temperature
• The discharge water temperature from a bidet fitting shall be limited to not greater than 110°F by a water-temperature-limiting device conforming to ASSE 1070/ASME A112.1070/CSA B125.70 or CSA B125.3
DISHWASHING
MACHINES
SECTION 409
409.1 Approval
• Commercial dishwashing
machines shall conform
to ASSE 1004 and
NSF 3.
• Residential dishwashers
shall conform to NSF
184.
409.3 Waste connection
• The waste connection
of a commercial
dishwashing machine
shall comply with
Section 802.1.6.
• The discharge from a
commercial
dishwashing machine
shall be through an
air gap or air break
into a waste receptor
in accordance with
Section 802.2.
409.4 Residential dishwasher waste connection
• The waste connection of a residential dishwasher shall connect directly to a wye branch fitting on the tailpiece of the kitchen sink, directly to the dishwasher connection of a food waste disposer, or through an air break to a standpipe.
409.4 Residential dishwasher waste connection
• The waste line of a
residential dishwasher
shall rise and be
securely fastened to
the underside of the
sink rim or counter top.
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410.1 Approval Drinking Fountains
• Drinking fountains
shall conform to
ASME A112.19.1/CSA
B45.2 or ASME
A112.19.2/CSA B45.1
and water coolers
shall conform to
ASHRAE 18.
410.1 Approval Drinking Fountains
• Drinking fountains,
water coolers and
water dispensers
shall conform to NSF
61, Section 9.
410.1 Approval Drinking Fountains
• Electrically operated,
refrigerated drinking
water coolers and
water dispensers
shall be listed and
labeled in accordance
with UL 399.
411.3 Water supply
• Where hot and cold water
is supplied to an
emergency shower or
eyewash station, the
temperature of the water
supply shall only be
controlled by a
temperature actuated
mixing valve complying
with ASSE 1071
412.7 Temperature-actuated, flow-reduction devices
for individual fixture fittings
• Temperature-actuated,
flow reduction devices,
where installed for
individual fixture
fittings, shall conform to
ASSE 1062
412.7 Temperature-actuated, flow-reduction devices
for individual fixture fittings
• A temperature actuated,
flow-reduction device
shall be an approved
method for limiting the
water temperature to
not greater than 120º F
at the outlet of a faucet
or fixture fitting.
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• Such devices shall not be used alone as a substitute for
the balanced-pressure, thermostatic or combination
shower valves required in Section 412.3 or as a
substitute for bathtub or whirlpool tub water temperature-
limiting valves required in Section 412.5.
412.7 Temperature-actuated, flow-reduction devices
for individual fixture fittings 412.9 Water closet personal hygiene devices
• Personal hygiene devices
integral to water closets
or water closet seats shall
conform to the
requirements of ASME
A112.4.2/CSA B45.16.
412.10 Head shampoo sink faucets
• Head shampoo sink faucets shall be supplied with hot
water that is limited to not more than 120°F by a water-
temperature-limiting device that conforms to ASSE
1070/ASME A112.1070/CSA B125.70.
412.10 Head shampoo sink faucets
• Each faucet shall
have integral check
valves to prevent
crossover flow
between the hot and
cold water supply
connections.
415.2 Flushometer valves and tanks
• Flushometer valves and tanks shall comply with ASSE
1037/ASME A112.1037/ CSA B125.37 or CSA B125.3.
• Vacuum breakers on flushometer valves shall conform to
the performance requirements of ASSE 1001 or CSA
B64.1.1.
415.2 Flushometer valves and tanks
• Access shall be provided to vacuum breakers.
• Flushometer valves shall be of the water conservation
type
• Water pressure shall meet the minimum required for
normal operation.
• When operated, the valve shall automatically complete
the cycle of operation, opening fully and closing
positively under the water supply pressure.
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415.2 Flushometer valves and tanks
• Each flushometer valve
shall be provided with a
means for regulating the
flow through the valve.
• The trap seal to the
fixture shall be
automatically refilled after
each flushing cycle.
415.3.1 Fill valves
• Flush tanks shall be
equipped with an
antisiphon fill valve
• The fill valve backflow
preventer shall be
located not less than
1 inch above the full
opening of the
overflow pipe.
Cooling tower make up water and reservoir
overflow
Auto Fill Valve
Manuel fill valve
Fill Valve openings are below the overflow and the flood rim
415.3.4 Access required
• All parts in a flush
tank shall be provided
with access for repair
and replacement
419.5 Tempered water for public hand-washing
facilities
• Tempered water shall
be delivered through
an approved water-
temperature limiting
device that conforms
to ASSE 1070/ASME
A112.1070/CSA
B125.70 or CSA
B125.3.
421.5.2 Shower lining
• Floors under shower compartments, except where
prefabricated receptors have been provided, shall be
lined and made water tight utilizing material complying
with Sections 421.5.2.1 through 421.5.2.6.
• Such liners shall turn up on all sides not less than 2
inches above the finished threshold level.
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421.5.2 Shower lining
• Liners shall be recessed and fastened to an approved
backing so as not to occupy the space required for wall
covering, and shall not be nailed or perforated at any
point less than 1 inch above the finished threshold.
Note the backing is missing
Shower drains with composite lining systems
421.5.2 Shower lining.Liners shall be pitched one-fourth unit vertical in 12 units horizontal(2-percent slope) and shall be sloped toward the fixture drains
Shower drains with composite lining systems
Shall be securely fastened to the waste outlet at the seepage entrance, making a water-tight joint between the liner and the outlet.
Shower drains with composite lining systems
The completed liner shall be tested in accordance with Section 312.9.
423.3 Footbaths and pedicure baths
• The water supplied to specialty plumbing fixtures, such
as pedicure chairs having an integral foot bathtub and
footbaths, shall be limited to not greater than 120°F by a
water-temperature-limiting device that conforms to ASSE
1070/ASME A112.1070/CSA B125.70 or CSA B125.3.
2018 UPC Chapter 4
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401.2 Quality of Fixtures
• Plumbing fixtures shall be
constructed of dense,
durable, non-absorbent
materials and shall have
smooth, impervious
surfaces, free from
unnecessary concealed
fouling surfaces.
402.4 Wall-Hung Fixtures
• Floor-affixed supports for
off-the-floor plumbing
fixtures for public use
shall comply with ASME
A112.6.1M.
• Framing-affixed supports
for off the-floor water
closets with concealed
tanks shall comply with
ASME A112.6.2.
Flush tanks and similar appurtenances shall be secured by approved non-corrosive screws or bolts
402.9 Design and Installation of Plumbing Fixtures
• Plumbing fixtures shall be installed in accordance with
the manufacturer’s installation instructions.
• The means of backflow prevention shall not be
compromised by the designated fixture fitting mounting
surface.
404.1 Waste Fittings
• Waste fittings shall
comply with ASME
A112.18.2/CSA B125.2,
ASTM F409 or
• Table 701.2 for
aboveground drainage
piping and fittings
407.3 Hot Water Temperature for Public
Lavatories
• Hot water delivered from public use lavatories shall
be limited to a maximum temperature of 120°F by a
device that complies with ASSE 1070/ASME
• A112.1070/CSA B125.70.
• The water heater thermostat shall not be considered
a control for meeting this provision.
– The water heater thermostat
shall not be considered a
control for meeting this
provision:
407.6 Overflow also 409.3
• Where overflows are provided, they shall be
installed in accordance with Section 404.2.
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408.2 Water Consumption
• Showerheads shall
have a maximum flow
rate of not more than
2.5 gpm at 80 psi.
408.3 Individual Shower and Tub-Shower
Combination Control Valves
• These valves shall be
installed at the point
of use and comply with
ASSE 1016/ASME
A112.1016/CSA
B125.16 or
• ASME A112.18.1/CSA
B125.1
409.4 Limitation of Hot Water in Bathtubs
and Whirlpool Bathtubs.
• The maximum hot water
temperature discharging from the
bathtub and whirlpool bathtub
filler shall be limited to 120°F by a
device that complies with ASSE
1070/ASME A112.1070/CSA
B125.70.
The water heater thermostat shall not be considered a control for meetingthis provision.
409.4 Limitation of Hot Water in Bathtubs and Whirlpool Bathtubs. The maximum hot water temperature discharging from the bathtub and whirlpool bathtub filler shall be limited to 120°F by a device that is in accordancewith ASSE 1070 or CSA B125.3. The water heater thermostat shall not be considered a control for meeting this provision.
Device to be located under the lav
410.3 Limitation of Water Temperature in Bidets
• The maximum hot
water temperature
discharging from a
bidet shall be limited
to 110°F by a device
that is in accordance
with ASSE 1070 or
CSA B125.3.
411.4 Personal Hygiene Devices
• Water closets with
integral personal
hygiene devices shall
comply with ASME
A112.4.2/CSA
B45.16.
121 122
123 124
125 126
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412.1.1 Non-water Urinals
• Where non-water urinals are installed they shall
have a water distribution line rough-in to the
urinal location to allow for the installation of an
approved backflow prevention device in the event
of a retrofit.
413.3 Flush Tanks
• Flush tanks for manual flushing shall be equipped with a
flush valve that complies with ASME A112.19.5/CSA
B45.15 and an anti-siphon fill valve (ballcock) that
complies with ASSE 1002/ASME A112.1002/CSA
B125.12 and installed in accordance with Section
603.5.2.
This diagram was taken from a U.S. Navy training manual, which the
Navy identifies as document number "NAVEDTRA 14265" with a title
of "Utilitiesman basic volume 1".
414.3 Dishwashing Machines
• Domestic dishwashing machines shall discharge
indirectly through an air gap fitting into:
1. A waste receptor 2. A wye branch fitting on the
sink tailpiece 3. A dishwasher connection of
a food waste disposer.
Dishwasher drain
Air gap Fitting
414.3 Dishwashing Machines
• The indirect discharge
for commercial
dishwashing
machines shall be in
accordance with
Section 807.1, and
the direct discharge
shall be in
accordance with
Section 704.3.
417.4 Faucets and Fixture Fittings with Hose
Connected Outlets.
• Faucets and fixture
fittings with pull out
spouts with integral
backflow protection
shall comply with
ASME A112.18.1/CSA
B125.1 or shall have
a backflow preventer
device that complies
with ASME A112.18.3.
127 128
129 130
131 132
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422.2.1 Family or Assisted-Use Toilet
Facilities
• Where a separate toilet facility is required for each
sex, and each toilet facility is required to have only
one water closet, two family or assisted-use toilet
facilities shall be permitted in place of the required
separate toilet facilities.
Water Heaters
Chapter 5:
IPC Chapter 5
WATER HEATERS
501.7 Pressure marking of storage tanks
• Storage tanks and water heaters installed for domestic
hot water shall have the maximum allowable working
pressure clearly and indelibly stamped in the metal or
marked on a plate welded thereto or otherwise
permanently attached.
• Such markings shall be in a position with access on the
outside of the tank so as to make inspection or re-
inspection readily possible.
INSTALLATION
SECTION 502
502.1 General
• Solar thermal water
heating systems shall
conform to the
requirements of the
International
Mechanical Code and
ICC 900/SRCC 300.
133 134
135 136
137 138
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SAFETY DEVICES
SECTION 504
504.6 Requirements for discharge piping
14. Be one nominal size
larger than the size of
the relief valve outlet,
where the relief valve
discharge piping is
installed with insert
fittings.
• The outlet end of such
tubing shall be
fastened in place.
504.7 Required pan
• Where a storage tank-type water heater or a hot water
storage tank is installed in a location where water
leakage from the tank will cause damage, the tank shall
be installed in a pan constructed of one of the following:
1. Galvanized steel or aluminum of not less than 0.0236 Inch in
thickness.
2. Plastic not less than 0.036 inch in thickness.
3. Other approved materials.
• A plastic pan shall not be installed beneath a gas-fired
water heater.
UPC Chapter 5
WATER HEATERS
504.6 Temperature, Pressure, and Vacuum Relief
Devices
• Discharge piping shall
be installed in
accordance with
Section 608.5.
139 140
141 142
143 144
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506.1.1 Other Types of Appliances
• Appliances of other than natural draft design appliances
not designated as Category I vented appliances, and
appliances equipped with power burners shall be
provided with combustion, ventilation, and dilution air in
accordance with the appliance manufacturer’s
instructions.
506.6 Engineered Installations
• Engineered combustion air installations shall
provide an adequate supply of;
– Combustion, ventilation and dilution air and;
– Be approved by the AHJ:
506.8.2 Louvers and Grills
Motorized louvers shall be;– Interlocked with the equipment to be in the full open
position prior to main burner ignition and operation:
– Means shall be provided;
‒ To prevent main burner ignition if louver fails to open
and;
‒ To shut down main burner if louvers close during
burner operation:
507.3 Appliance Support
• Appliances and equipment shall be furnished either with
load-distributing bases or with a sufficient number of
supports to prevent damage to either the building
structure or the appliance and the equipment
507.3.1 Structural Capacity
• At the locations selected for installation of appliances
and equipment, the dynamic and static load carrying
capacities of the building structure shall be checked to
determine whether they are adequate to carry the
additional loads
Section 509.0
Venting of Water Heaters
145 146
147 148
149 150
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509.3.6 Above-Ceiling or Non-ducted
Air Handling System
• Shall conform to one of the following requirements:
(1) The venting system shall be a listed special gas
vent, other system serving a Category III or
Category IV appliance, or other positive pressure
vent, with joints sealed in accordance with the
appliance or vent manufacturer’s instructions.
• (2) The vent system shall be installed such that no
fittings or joints between sections are installed in the
above-ceiling space.
509.3.6 Above-Ceiling or Non-ducted Air Handling
System
509.3.6 Above-Ceiling or Non-ducted Air Handling
System
(3) The venting system shall be installed in a conduit or
enclosure with joints between the interior of the
enclosure and the ceiling space sealed.
[NFPA 54:12.4.5.2]
509.4.2 Type of Venting System to Be Used
• 509.4.2 Plastic Piping.
The appliance shall be listed for use
with such venting materials and the
appliance manufacturer’s installation
instructions shall identify the specific
plastic piping material.
• [NFPA 54:12.5.2]
509.6 Gas Vents
(3) Gas vents installed within masonry chimneys shall be
installed in accordance with the manufacturer’s
installation instructions.
Gas vents installed within masonry chimneys shall
be identified with a permanent label installed at the
point where the vent enters the chimney.
The label shall contain the following language: “This
gas vent is for appliances that burn gas. Do not
connect to solid or liquid fuel–burning appliances or
incinerators.
2018 IPC Chapter 6
WATER SUPPLY AND
DISTRIBUTION
151 152
153 154
155 156
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602.3.1 Sources
• Individual water supplies shall be constructed and
installed in accordance with the applicable state and
local laws.
• Where such laws do not address all of the requirements
set forth in NGWA-01, individual water supplies shall
comply with NGWA-01 for those requirements not
addressed by state and local laws.
National Ground Water Association
604.11 Individual pressure balancing in-line valves
for individual fixture fittings
• Where individual pressure balancing in-line valves for
individual fixture fittings are installed, such valves shall
comply with ASSE 1066.
Such valves shall be installed in a location with
access.
The valves shall not be utilized alone as a substitute
for the balanced pressure, thermostatic or
combination shower valves required in
Section 412.3.
605.4 Water distribution pipe
• Water distribution pipe and tubing shall conform to NSF
61 and shall conform to one of the standards listed in
Table 605.4.
• Hot water distribution pipe and tubing shall have a
pressure rating of not less than 100 psi at 180ºF.
Potable water pump for water distribution system
Copper Alloy materials were added through out the plumbing and mechanical codes
157 158
159 160
161 162
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Elevated temperature PE materials were added throughout the plumbing and mechanical codes
Standards were upgraded
605.13.7 Push-fit joints
• Push-fit joints shall
conform to ASSE
1061 and shall be
installed in
accordance with the
manufacturer’s
instructions.
605.14.4 Push-fit joints
• Push-fit joints shall
conform to ASSE
1061 and shall be
installed in
accordance with the
• manufacturer’s
instructions.
605.16.3 Push-fit joints
• Push-fit joints shall
conform to ASSE 1061
and shall be installed in
accordance with the
manufacturer’s
instructions.
605.23.1 Copper or copper-alloy tubing to
galvanized steel pipe
• Joints between copper
pipe or tubing and
galvanized steel pipe
shall be made with a
copper-alloy or
dielectric fitting or a
dielectric union
conforming to
• ASSE 1079.
163 164
165 166
167 168
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606.5.9 Pressure tanks, vacuum relief
• Water pressure tanks
shall be provided with
a vacuum relief valve
at the top of the tank
that will operate up to
a maximum water
pressure of 200 psi
and up to a maximum
temperature of 200ºF.
607.3 Thermal expansion control
• Where a storage water heater
is supplied with cold water that
passes through a check valve,
pressure reducing valve or
backflow preventer, a thermal
expansion control device shall
be connected to the water
heater cold water supply pipe
at a point that is downstream of
all check valves, pressure
reducing valves and backflow
preventers.
608.4 Potable water handling and treatment
equipment
• Water pumps, filters, softeners, tanks and other
appliances and devices that handle or treat potable
water to be supplied to the potable water distribution
system shall be located to prevent contamination from
entering the appliances and devices.
• Overflow, relief valve and waste discharge pipes from
such appliances and devices shall terminate through an
air gap.
608.8 Valves and outlets prohibited below grade
• Potable water outlets and combination stop-and-waste
valves shall not be installed underground or below
grade.
• A freeze proof yard hydrant a hydrant that drains the
riser into the ground shall be considered as having a
stop-and-waste valve below grade.
608.8 Valves and outlets prohibited below grade
• Exception:
Freeze proof yard hydrants that drain the riser
into the ground shall be permitted to be installed,
provided that the potable water supply to such
hydrants is protected in accordance with Section
613.13.2 or 613.13.5, and the hydrants and the piping
from the backflow preventer to the hydrant are
identified in accordance with Section 608.9.
Upgrade standards
169 170
171 172
173 174
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608.10 Reutilization prohibited
• Water utilized for the heating or cooling of equipment or
other processes shall not be returned to the potable
water system.
• Such water shall be discharged into a drainage system
through an air gap or shall be utilized for non-potable
purposes.
608.12 Potable water tanks
• Where in contact with potable water intended for drinking
water, water tanks, coatings for the inside of tanks and
liners for water tanks shall conform to NSF 61.
608.12 Potable water tanks
• The interior surface of a potable water tank shall not be
lined, painted or repaired with any material that changes
the taste, odor, color or potability of the water supply
when the tank is placed in, or returned to, service.
608.14.1 Air gap
• Products that are listed and labeled to ASME A112.1.2 or
ASME A112.1.3 shall be considered to be in compliance
with this section.
608.14.5 Pressure vacuum breaker assemblies.
• Pressure vacuum breaker
assemblies shall comply
with ASSE 1020 or CSA
B64.1.2.
• Spill-resistant vacuum
breaker assemblies shall
comply with ASSE 1056
or CSA B64.1.3.
608.14.5 Pressure vacuum breaker assemblies
• These assemblies
shall be installed with
the critical level of the
assembly located not
less than 12 inches
above all downstream
piping and outlets.
175 176
177 178
179 180
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608.14.5 Pressure vacuum breaker assemblies
• Pressure vacuum breaker assemblies
shall not be installed in locations where
spillage could cause damage to the
structure.
608.16 Protection of potable water outlets
• Potable water openings and outlets shall be protected
against backflow in accordance with Section 608.16.1,
608.16.2, 608.16.3, 608.16.4, 608.16.4.1 or 608.16.4.2.
608.17.1 Beverage dispensers
• The water supply connection to beverage dispensers
shall be protected against backflow in accordance with
Sections 608.17.1.1 and 608.17.1.2.
608.17.1.1 Carbonated beverage dispensers
• The water supply connection to each carbonated
beverage dispenser shall be protected against backflow
by a backflow preventer conforming to ASSE 1022 or by
an air gap.
Listed backflow preventer
608.17.1.1 Carbonated beverage dispensers
• The portion of the backflow preventer device
downstream from the second check valve of the device
and the piping downstream therefrom shall not be
affected by carbon dioxide gas.
608.17.1.2 Coffee machines and noncarbonated
drink dispensers
• The water supply connection to each coffee machine
and each noncarbonated beverage dispenser shall be
protected against backflow by a backflow preventer
conforming to ASSE 1022 or ASSE 1024, or protected by
an air gap
181 182
183 184
185 186
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608.17.9 Dental pumping equipment
• The water supply connection to each dental pumping
equipment system, the water supply system shall be
protected against backflow in accordance with Section
608.14.1, 608.14.2, 608.14.5, 608.14.6 or 608.14.8.
608.17.10 Humidifiers
• The water supply connection to humidifiers that do not
have internal backflow protection shall be protected
against backflow by a backflow preventer conforming to
ASSE 1012 or by an air gap.
HEALTH CARE
PLUMBING
SECTION 609
609.1 Scope
• The provisions of this section shall apply to the special
devices and equipment installed and maintained in the
following occupancies: Group I-1, Group I- 2, Group B
ambulatory care facilities, medical offices, research and
testing laboratories, and Group F facilities manufacturing
pharmaceutical drugs and medicines.
DRINKING WATER
TREATMENT UNITS
SECTION 611
611.1 Design
• Point-of-use reverse
osmosis drinking water
treatement units shall
comply with NSF 58 or
CSA B483.1.
• Drinking water treatment
units shall meet the
requirements of NSF 42,
NSF 44, NSF 53, NSF 62
or CSA B483.1
187 188
189 190
191 192
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UPC Chapter 6
Waste Distribution Piping
601.2 Hot and Cold Water Required
• In occupancies
where plumbing
fixtures are
installed for public
use, hot water shall
be required for
bathing and
washing purposes.
Running Water Required 601.0
• Water closets, urinals,
and trap primers in
designated
nonresidential buildings
• May be provided with
reclaimed water as
defined and regulated
by Chapter 16 of this
code.
601.3 Identification of a Potable and Nonpotable Water System
• In buildings where potable water and nonpotable water systems are
installed, each system shall be clearly identified in accordance with Sections
601.3.1 through 601.3.5.
603.4.4 General Requirements
• Direct connections between potable water piping and the sewer connected wastes shall not exist under any condition:
• Where potable water is
discharged to the drainage
system;– It shall be by means of an
approved airgap of 2 pipe
diameters of the supply inlet
but in no case less than 1"
What’s wrong inspector?
603.5.21 Chemical Dispensers
• The water supply to chemical dispensers shall be
protected against backflow.
• The chemical dispenser shall comply with ASSE 1055 or
the water supply shall be protected by one of the
following methods:(1) Air gap
(2) Atmospheric vacuum breaker (AVB)
(3) Pressure vacuum breaker backflow prevention assembly (PVB)
(4) Spill-resistant pressure vacuum breaker (SVB)
(5) Reduced-pressure principle backflow prevention assembly (RP)
193 194
195 196
197 198
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603.5.18.1 Dialysis Water Systems
• The individual connections of the dialysis related
equipment to the dialysis pure water system
shall not require additional backflow protection.
604.2 Lead Content
• The maximum allowable lead content in pipes, pipe
fittings, plumbing fittings, and fixtures intended to convey
or dispense water for human consumption shall be not
more than a weighted average of 0.25 percent with
respect to the wetted surfaces of pipes, pipe fittings,
plumbing fittings, and fixtures.
604.2 Lead Content
• For solder and flux,
the lead content shall
be not more than 0.2
percent where used in
piping systems that
convey or dispense
water for human
consumption.
604.10.1 Tracer Wire
• Plastic materials for building supply piping outside
underground shall have an electrically continuous
corrosion-resistant blue insulated copper tracer wire, or
other approved conductor installed adjacent to the
piping.
605.12 PVC Plastic Pipe and Joints
• PVC piping shall not be exposed to direct sunlight unless
the piping does not exceed 24 inches and is wrapped
with not less than 0.04 of an inch thick tape or otherwise
protected from UV degradation.
199 200
201 202
203 204
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608.2 Excessive Water Pressure
• The expansion tank shall be properly sized and installed
in accordance with the manufacturer’s instructions and
listing.
• Systems designed by registered engineers shall be
permitted to use approved pressure relief valves in lieu
of expansion tanks provided such relief valves have a
maximum pressure relief setting of one- hundred (100)
pounds per square inch (689 kPa) or less.
Relief Valves
• T&P Relief Valve
• Vacuum Relief Valve
607.5 Valves
• Where a potable water
supply tank is located
above the fixtures,
appliances, or system
components it serves it
shall be equipped with a
vacuum relief valve that is
in accordance with CSA
Z21.22.
608.5 Requirements for discharge piping
• The discharge piping serving a pressure relief valve, temperature relief valve or combination thereof shall:
• 1. Equal to the size of the valve outlet
and shall discharge full size to the flood
level of the area receiving the
discharge and pointing down
• 2. Materials shall be rated at not less
than the operating temperature of the
system and approved for such use.
• 3. Discharge pipe shall discharge
independently by gravity through an air gap
into the drainage system or outside
of the building with the end of the pipe not
exceeding 2 feet and not less than 6 inches
above the ground and pointing downwards.
609.4 Testing
• Upon completion of a section or of the entire hot and
cold water supply system, the system shall be tested
with water or air.
• The potable water test pressure shall be greater than or
equal to the working pressure under which the system is
to be used.
• The air pressure shall be a minimum of 50 psi. Plastic
pipe shall not be tested with air.
• The piping system shall withstand the test pressure
without showing evidence of leakage for a period of not
less than 15 minutes.
609.4 Testing Exception:
• PEX, PP or PE-RT
tube shall be
permitted to be tested
with air where
permitted by the
manufacturer’s
instructions.
205 206
207 208
209 210
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612.2 Types of Systems
• This section shall apply to stand-alone and
multipurpose wet-pipe sprinkler systems that
do not include the use of antifreeze.
• A multipurpose fire sprinkler system shall
provide potable water to both fire sprinklers
and plumbing fixtures.
New Section 612.2 Types of Systems
• A stand-alone sprinkler system shall be
separate and independent from the
potable water distribution system.
• A backflow preventer shall not be required
to separate a stand-alone sprinkler
system from the water distribution system
where the sprinkler system material is in
accordance with the requirements of
Section 604.0.
Pressure Reducing Valve with Thermal Expansion
Bypass
Chapter 7 Drainage
2018 IPC
Chapter 7 Drainage
701.2 Connection to sewer required
• Sanitary drainage piping from plumbing fixtures in
buildings and sanitary drainage piping systems from
premises shall be connected to a public sewer.
211 212
213 214
215 216
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701.2 Connection to sewer required
• Where a public sewer is not available, the sanitary
drainage piping and systems shall be connected to a
private sewage disposal system in compliance with state
or local requirements.
701.2 Connection to sewer required
• Where state or local requirements do not exist for private
sewage disposal systems, the sanitary drainage piping
and systems shall be connected to an approved private
sewage disposal system that is in accordance with the
International Private Sewage Disposal Code.
Retrieved from: https://www.pca.state.mn.us/living-green/healthy-septic-systems
701.2 Connection to sewer required
• Exception:
• Sanitary drainage piping and systems that convey only
the discharge from bathtubs, showers, lavatories, clothes
washers and laundry trays shall not be required to
connect to a public sewer or to a private sewage
disposal system provided that the piping or systems are
connected to a system in accordance with Chapter 13 or
14.
217 218
219 220
221 222
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BUILDING SEWER
SECTION 703
703.2 Drainage pipe in filled ground
• Where a building sewer or building drain is installed on
filled or unstable ground, the drainage pipe shall conform
to one of the standards for ABS plastic pipe, cast-iron
pipe, copper or copper alloy tubing, PVC plastic pipe or
polypropylene plastic pipe indicated in Table 702.3.
703.4 Existing building sewers and building drains
• Where the entire sanitary drainage
system of an existing building is
replaced, existing building drains under
concrete slabs and existing building
sewers that will serve the new system
shall be internally examined to verify
that the piping is sloping in the correct
direction, is not broken, is not
obstructed and is sized for the drainage
load of the new plumbing drainage
system to be installed.
DRAINAGE PIPING
INSTALLATION
SECTION 704
223 224
225 226
227 228
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704.1 Slope of horizontal drainage piping
• The slope of a horizontal drainage pipe shall be not less
than that indicated in Table 704.1 except that where the
drainage piping is upstream of a grease interceptor,
the slope of the piping shall be not less than 1/4 inch per
foot (2- percent slope).
704.2 Reduction in pipe size in the direction of flow
• The size of the drainage piping shall not be reduced in
the direction of the flow.
• The following shall not be considered as a reduction in
size in the direction of flow:
1. A 4-inch by 3-inch water closet flange.
2. A water closet bend fitting having a 4-inch inlet and a 3-inch
outlet provided that the 4-inch leg of the fitting is upright
and below, but not necessarily directly connected to, the
water closet flange.
3. An offset closet flange.
705.10.3 Threaded joints
• Threads shall
conform to ASME
B1.20.1.
705.15 Polypropylene plastic
• The joint between polypropylene plastic pipe and fittings shall incorporate an elastomeric seal.
• The joint shall conform to ASTM D3212.
• Mechanical joints shall not be installed above ground
705.16.1 Copper pipe or tubing to cast-iron hub
pipe
• Joints between
copper pipe or tubing
and cast-iron hub
pipe shall be made
with a copper or
copper alloy ferrule or
compression joint.
229 230
231 232
233 234
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705.16.2 Copper or copper-alloy pipe or tubing to
galvanized steel pipe.
• Joints between
copper or copper-
alloy pipe or tubing
and galvanized steel
pipe shall be made
with a copper-alloy
fitting or dielectric
fitting
705.16.4 Plastic pipe or tubing to other piping
material
• Joints between different types of plastic pipe
shall be made with an approved adapter fitting,
or by a solvent cement joint only where a single
joint is made between ABS and PVC pipes at the
end of a building drainage pipe and the
beginning of a building sewer pipe using a
solvent cement complying with ASTM D3138.
705.18 Caulking ferrules
• Caulking ferrules shall
be of copper alloy and
shall be in accordance
with Table 705.18.
705.19 Soldering bushings
• Soldering bushings
shall be of copper or
copper alloy and shall
be in accordance with
Table 705.19.
PROHIBITED JOINTS
AND CONNECTIONS
SECTION 707
707.1 Prohibited joints
• 5. Solvent-cement joints between different types
of plastic pipe except where provided for in
Section 705.16.4.
235 236
237 238
239 240
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708.1.6 Cleanout plugs
• Cleanout plugs shall be of copper-alloy, plastic or other
approved materials.
• Cleanout plugs for borosilicate glass piping systems
shall be of borosilicate glass.
• Copper-alloy cleanout plugs shall conform to ASTM A74
and shall be limited for use only on metallic piping
systems.
709.3 Conversion of gpm flow to dfu values
• Where discharges to a waste receptor or to a
drainage system are only known in gallons per
minute values, the drainage fixture unit values for
those flows shall be computed on the basis that 1
gpm of flow is equivalent to two drainage fixture
units. (WOW!)
Discharge to floor sink will be 20 gpm at maximum flow
Pump is rated at 30 gpm
How many fixture units do we size the gravity drain for?
60 fixture units
SUMPS AND EJECTORS
SECTION 712
712.3.2 Sump pit
• The pit shall be
provided with access
and shall be located
such that all drainage
flows into the pit by
gravity.
712.3.2 Sump pit
• The sump pit shall be
fitted with a gastight
removable cover that
is installed not more
than 2 inches below
grade or floor level.
Are there any problems?
712.3.3 Discharge pipe and fittings
• 712.3.3.1 Materials
• Pipe and fitting
materials shall be
constructed of copper
or copper-alloy,
CPVC, ductile iron,
PE, or PVC.
Are there any violations?
Galvanized pipe
241 242
243 244
245 246
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What are the problems?
Galvanized pipe
Drainage into the lid
REPLACEMENT OF UNDERGROUND
BUILDING SEWERS AND BUILDING DRAINS BY
PIPE-BURSTING METHODS
SECTION 716
716.1 General
• This section shall govern the replacement of existing
building sewer and building drain piping by pipe
bursting methods.
716.2 Applicability
• The replacement of building sewer and building drain piping
by pipe-bursting methods shall be limited to gravity drainage
piping of sizes 6 inches and smaller.
• The replacement piping shall be of the same nominal size as
the existing piping.
716.4 Pipe
• The replacement pipe shall be made of high-density
polyethylene (HDPE) and shall have a standard
dimension ratio (SDR) of 17.
• The pipe shall be in compliance with ASTM F714.
716.5 Pipe fittings
• Pipe fittings to be connected to the replacement pipe
shall be made of high-density polyethylene (HDPE) and
shall be in compliance with ASTM D2683.
247 248
249 250
251 252
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716.6 Cleanouts
• Where the existing building sewer or building drain did
not have cleanouts meeting the requirements of this
code, cleanout fittings shall be installed as required by
this code.2018 UPC
Chapter 7 Drainage
701.2 Drainage Piping
• Materials for drainage piping shall be in accordance with one of the referenced standards in Table 701.2 except that:1. No galvanized wrought-iron or galvanized steel pipe shall be
used underground and shall be kept not less than six (6) inches (152 mm) above ground.
2. Except for individual single-family dwelling units, materials exposed
within ducts or plenums shall have a flame-spread index of not more
than 25 and a smoke developed index of not more than 50, where
tested in accordance with ASTM E84 or UL 723.
These tests shall comply with all requirements of the standards to
include the sample size, both for width and length.
Plastic pipe shall not be tested filled with water
701.2 Materials (cont’d)
4. Copper tube for drainage and vent piping shall
have a weight of not less than that of copper
drainage tube type DWV.
701.2(5) Drainage Pipe
– Stainless steel 304 pipe and fittings shall not be
installed underground and shall be kept at least 6
inches (152 mm) aboveground.
Stainless Steel Pipe and Fittings
253 254
255 256
257 258
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701.2 Materials (cont’d)
6. Cast-iron soil pipe and fittings and the stainless steel
couplings used to join these products shall be listed
and tested in accordance with standards referenced in
Table 701.2.
Such pipe and fittings shall be marked with the country
of origin, manufacturer’s name or registered trademark
as defined in the product standards, the third
party certifier’s mark, and the class of the pipe or fitting
701.2 Plastic - ABS/PVC DWV Pipe
• Installed per standards,
(see Table 701.0) and
Chapter 14 “Firestop
Protection”
• Shall have a
flame/smoke index of
not more than 25/50.
when exposed within
ducts and plenums.
(Except single family
dwellings.)
Fittings
Santee Santee on its back
701.3.1 Screwed Pipe
• Fittings on screwed
pipe shall be of the
recessed drainage
type. Burred ends
shall be reamed to
the full bore of the
pipe.
702.3 Continuous Flow
• For a continuous flow
into a drainage
system, such as from a
pump, sump ejector,
air conditioning
equipment, or similar
device, 2 fixture units
shall be equal to each
gallon per minute of
flow.
259 260
261 262
263 264
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705.5 Polyethylene (PE) Sewer Pipe
• Polyethylene (PE) sewer pipe or tubing and fitting joining
methods shall be installed in accordance with the
manufacturer’s installation instructions and shall comply
with Section 705.5.1 through Section 705.5.1.3.
705.5.1 Heat-Fusion
• Heat-fusion joints between PE sewer pipe or tubing and
fittings shall be assembled in accordance with Section
705.5.1.1 through Section 705.5.1.3 using butt-fusion,
electro-fusion, or socket-fusion heat methods.
• Do not disturb the joint until cooled to ambient
temperature
705.5.1.1 Butt-Fusion Joints
• Butt-fusion joints for PE pipe shall be installed in
accordance with ASTM F2620 and shall be made by
heating the prepared ends of two pipes, pipe and fitting,
or two fittings by holding ends against a heated element.
• The heated element shall be removed when the
required melt or times are obtained and heated ends
shall be placed together with applied force. Do not
disturb the joint until cooled to ambient temperature.
705.5.1.2 Electro-Fusion Joints
• Electro-fusion joints shall be heated internally by a
conductor at the interface of the joint.
• Fittings shall comply with ASTM F1055 for the
performance requirements of polyethylene electro-fusion
fittings.
705.5.1.2 Electro-Fusion Joints
• The specified electro-
fusion cycle used to form
the joint requires
consideration of the
properties of the
materials being joined,
the design of the fitting
being used, and the
environmental conditions.
705.5.1.2 Electro-Fusion Joints
• Align and restrain fitting to pipe to prevent movement
and apply electric current to the fitting.
• Turn off the current when the required time has elapsed
to heat the joint.
• Do not disturb the joint until cooled to ambient
temperature
265 266
267 268
269 270
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705.6.2 Solvent Cement Joints
• Solvent cement joints for PVC pipe and fittings shall be clean from dirt and moisture.
• Where surfaces to be joined are cleaned and free of dirt, moisture, oil, and other foreign material, apply primer purple in color that complies with ASTM F656. No purple
primer
707.4 Cleanout locations UPC
• A cleanout shall be
installed above the
fixture connection
fitting, serving each
urinal, regardless of
the location of the
urinal in the
building.
Cleanout
TABLE 702.1
DRAINAGE FIXTURE UNIT VALUES (DFU)
• Buildings having a clothes-washing
area with clothes washers in a
battery of three or more clothes
washers shall be rated at 6 fixture
units each for purposes of sizing
common horizontal and vertical
drainage piping.
2015 UPC ITM
SIZE OF PIPE (inches) 1 ¼ 1 ½ 2 2 ½ 3 4
Maximum Units
Drainage Piping1
Vertical
Horizontal
1
1
22
1
163
83
323
143
484
354
256
2165
Maximum Length
Drainage Piping
Vertical, (feet)
Horizontal (unlimited)
45 65 85 148 212 300
Vent Piping
Horizontal and Vertical
Maximum Units
Maximum Lengths, (feet)
1
45
8
60
24
120
48
180
84
212
256
300
Sanitary Tee and Double
Fixture Fitting
2015 UPC
271 272
273 274
275 276
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Pot Sink with Floor
Drain
704.3
2015 UPC
704.3 Fixture Connections UPC
• Pot sinks, scullery sinks, dishwashing sinks,
silverware sinks, and other similar fixtures
shall be connected directly to the drainage
system.
• A floor drain shall be provided adjacent to
the fixture, and the fixture shall be connected
on the sewer side of the floor drain trap,
provided that no other drainage line is
connected between the floor drain waste
connection and the fixture drain.
• The fixture and floor drain shall be trapped
and vented in accordance with this code.
CONNECTIONS BETWEEN DRAINAGE
PIPING AND FITTINGS
SECTION 706
706.1 Changes in Direction of Drainage Flow.
• Changes in direction of
drainage piping shall be
made by the appropriate
use of approved fittings
and shall be of the angles
presented by a one-
sixteenth bend, one-
eighth bend, or one-sixth
bend, or other approved
fittings of equivalent
sweep.Figure 5
707.4 Location (Cleanout)
• (3) Excepting the building drain, its horizontal branches, and urinals, a cleanout shall not be required on a pipe or piping that is above the floor level of the lowest floor of the building.
710.1 UPC Drainage of Fixtures With Flood Level Rim Located Below Upstream Manhole
• Cleanouts for drains that pass through a backwater valve
shall be clearly identified with a permanent label stating
“backwater valve downstream”.
Backwater valve Downstream
277 278
279 280
281 282
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SECTION 710.1 Backflow Protection
• Fixtures installed on a floor level
that is lower than the next
upstream manhole cover shall be
protected by installing an
approved type of backwater
valve.
• Fixtures on floor levels above
such elevation shall not
discharge through the backwater
valve.
711.0 Suds Relief
• Drainage connections shall not be made within 8’ of any vertical to horizontal change when suds producing fixtures are present
• Bathtub, laundry sink, washing machine, kitchen sink, dishwashers are suds producing
• Parallel vent stacks shall connect
8’ above lowest point
• Exception:– Single family residence and stacks
under 3 stories
Suds Relief in the Drainage System 715.3 Existing Sewers
• Replacement of existing building sewer and building
storm sewers using trenchless methodology and
materials shall be installed in accordance with ASTM
F1216.
• Cast-iron soil pipes and fittings shall not be repaired or
replaced by using this method aboveground or
belowground.
• Replacement using cured-in-place pipe liners shall not
be used on collapsed piping or when the existing piping
is compromised.
2018 IPC
Chapter 8
INDIRECT/SPECIAL WASTE
801.1 Scope
• This chapter shall further control matters concerning
food-handling establishments, sterilizers, humidifiers,
clear-water waste, swimming pools, methods of
providing air breaks or air gaps, and neutralizing
devices for corrosive wastes
283 284
285 286
287 288
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801.2 Protection
• Devices, appurtenances, appliances and apparatus
intended to serve some special function, such as
sterilization, humidification, distillation, processing,
cooling, or storage of ice or foods, and that discharge to
the drainage system, shall be provided with protection
against backflow, flooding, fouling, contamination and
stoppage of the drain. INDIRECT WASTES
SECTION 802
802.1 Where required
• Food-handling equipment, in other than dwelling units,
clear-water waste, humidifiers, dishwashing machines
and utensils, pots, pans and dishwashing sinks shall
discharge through an indirect waste pipe as specified in
Sections 802.1.1 through 802.1.8.
802.1 Where required
• Fixtures not required to be indirectly connected by this
section and the exception to Section 301.6 shall be
directly connected to the plumbing system in accordance
with Chapter 7.
802.2 Material, joints and connections
• The materials, joints, connections and methods utilized
for the construction and installation of indirect waste
piping systems shall comply with the applicable
provisions of Chapter 7.
802.4.3.1 Connection of laundry tray to standpipe
• As an alternative for a
laundry tray fixture
connecting directly to a
drainage system, a
laundry tray waste line
without a fixture trap shall
connect to a standpipe for
an automatic clothes
washer drain.
289 290
291 292
293 294
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802.4.3.1 Connection of laundry tray to standpipe
• The standpipe shall extend not less than 30 inches
above the weir of the standpipe trap and shall extend
above the flood level rim of the laundry tray.
• The outlet of the laundry tray shall not be greater than 30
inches horizontal distance from the side of the standpipe.
Chapter 9 Venting
2018 IPC
Chapter 9 Vents AIR ADMITTANCE
VALVES
SECTION 918
918.8 Prohibited installations
• Air admittance valves shall not be used to vent sumps or
tanks except where the vent system for the sump or
tank has been designed by an engineer.
• Air admittance valves shall not be installed on
outdoor vent terminals for the sole purpose of
reducing clearances to gravity air intakes or
mechanical air intakes.
2018 UPC
Chapter 7 Drainage
295 296
297 298
299 300
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701.2 Drainage Piping
• Materials for drainage piping shall be in accordance with one of the referenced standards in Table 701.2 except that:1. No galvanized wrought-iron or galvanized steel pipe shall be
used underground and shall be kept not less than six (6) inches (152 mm) above ground.
2. Except for individual single-family dwelling units, materials exposed
within ducts or plenums shall have a flame-spread index of not more
than 25 and a smoke developed index of not more than 50, where
tested in accordance with ASTM E84 or UL 723.
These tests shall comply with all requirements of the standards to
include the sample size, both for width and length.
Plastic pipe shall not be tested filled with water
701.2 Materials (cont’d)
4. Copper tube for drainage and vent piping shall
have a weight of not less than that of copper
drainage tube type DWV.
701.2(5) Drainage Pipe
– Stainless steel 304 pipe and fittings shall not be
installed underground and shall be kept at least 6
inches (152 mm) aboveground.
701.2 Materials (cont’d)
6. Cast-iron soil pipe and fittings and the stainless steel
couplings used to join these products shall be listed
and tested in accordance with standards referenced in
Table 701.2.
Such pipe and fittings shall be marked with the country
of origin, manufacturer’s name or registered trademark
as defined in the product standards, the third
party certifier’s mark, and the class of the pipe or fitting
701.2 Plastic - ABS/PVC DWV Pipe
• Installed per standards,
(see Table 701.0) and
Chapter 14 “Firestop
Protection”
• Shall have a
flame/smoke index of
not more than 25/50.
when exposed within
ducts and plenums.
(Except single family
dwellings.)
301 302
303 304
305 306
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701.3.1 Screwed Pipe
• Fittings on screwed
pipe shall be of the
recessed drainage
type. Burred ends
shall be reamed to
the full bore of the
pipe.
702.3 Continuous Flow
• For a continuous flow
into a drainage
system, such as from a
pump, sump ejector,
air conditioning
equipment, or similar
device, 2 fixture units
shall be equal to each
gallon per minute of
flow.
705.5 Polyethylene (PE) Sewer Pipe
• Polyethylene (PE) sewer pipe or tubing and fitting joining
methods shall be installed in accordance with the
manufacturer’s installation instructions and shall comply
with Section 705.5.1 through Section 705.5.1.3.
705.5.1 Heat-Fusion
• Heat-fusion joints between PE sewer pipe or tubing and
fittings shall be assembled in accordance with Section
705.5.1.1 through Section 705.5.1.3 using butt-fusion,
electro-fusion, or socket-fusion heat methods.
• Do not disturb the joint until cooled to ambient
temperature
705.5.1.1 Butt-Fusion Joints
• Butt-fusion joints for PE pipe shall be installed in
accordance with ASTM F2620 and shall be made by
heating the prepared ends of two pipes, pipe and fitting,
or two fittings by holding ends against a heated element.
• The heated element shall be removed when the
required melt or times are obtained and heated ends
shall be placed together with applied force. Do not
disturb the joint until cooled to ambient temperature.
705.5.1.2 Electro-Fusion Joints
• Electro-fusion joints shall be heated internally by a
conductor at the interface of the joint.
• Fittings shall comply with ASTM F1055 for the
performance requirements of polyethylene electro-fusion
fittings.
307 308
309 310
311 312
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705.5.1.2 Electro-Fusion Joints
• The specified electro-
fusion cycle used to form
the joint requires
consideration of the
properties of the
materials being joined,
the design of the fitting
being used, and the
environmental conditions.
705.5.1.2 Electro-Fusion Joints
• Align and restrain fitting to pipe to prevent movement
and apply electric current to the fitting.
• Turn off the current when the required time has elapsed
to heat the joint.
• Do not disturb the joint until cooled to ambient
temperature
705.6.2 Solvent Cement Joints
• Solvent cement joints for PVC pipe and fittings shall be clean from dirt and moisture.
• Where surfaces to be joined are cleaned and free of dirt, moisture, oil, and other foreign material, apply primer purple in color that complies with ASTM F656. No purple
primer
707.4 Cleanout locations UPC
• A cleanout shall be
installed above the
fixture connection
fitting, serving each
urinal, regardless of
the location of the
urinal in the
building.
Cleanout
TABLE 702.1
DRAINAGE FIXTURE UNIT VALUES (DFU)
• Buildings having a clothes-washing
area with clothes washers in a
battery of three or more clothes
washers shall be rated at 6 fixture
units each for purposes of sizing
common horizontal and vertical
drainage piping.
2015 UPC ITM
313 314
315 316
317 318
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SIZE OF PIPE (inches) 1 ¼ 1 ½ 2 2 ½ 3 4
Maximum Units
Drainage Piping1
Vertical
Horizontal
1
1
22
1
163
83
323
143
484
354
256
2165
Maximum Length
Drainage Piping
Vertical, (feet)
Horizontal (unlimited)
45 65 85 148 212 300
Vent Piping
Horizontal and Vertical
Maximum Units
Maximum Lengths, (feet)
1
45
8
60
24
120
48
180
84
212
256
300
Sanitary Tee and Double
Fixture Fitting
2015 UPC
Pot Sink with Floor
Drain
704.3
2015 UPC
704.3 Fixture Connections UPC
• Pot sinks, scullery sinks, dishwashing
sinks, silverware sinks, and other similar
fixtures shall be connected directly to the
drainage system.
• A floor drain shall be provided adjacent to
the fixture, and the fixture shall be
connected on the sewer side of the floor
drain trap, provided that no other drainage
line is connected between the floor drain
waste connection and the fixture drain.
• The fixture and floor drain shall be trapped
and vented in accordance with this code.
Is this a correct installation?
CONNECTIONS BETWEEN DRAINAGE
PIPING AND FITTINGS
SECTION 706
319 320
321 322
323 324
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706.1 Changes in Direction of Drainage Flow.
• Changes in direction of
drainage piping shall be
made by the appropriate
use of approved fittings
and shall be of the angles
presented by a one-
sixteenth bend, one-
eighth bend, or one-sixth
bend, or other approved
fittings of equivalent
sweep.Figure 5
707.4 Location (Cleanout)
• (3) Excepting the building drain, its horizontal branches, and urinals, a cleanout shall not be required on a pipe or piping that is above the floor level of the lowest floor of the building.
710.1 UPC Drainage of Fixtures With Flood Level Rim Located Below Upstream Manhole
• Cleanouts for drains that pass through a backwater valve
shall be clearly identified with a permanent label stating
“backwater valve downstream”.
Backwater valve Downstream
SECTION 710.1 Backflow Protection
• Fixtures installed on a floor level
that is lower than the next
upstream manhole cover of shall
be protected by installing an
approved type of backwater
valve.
• Fixtures on floor levels above
such elevation shall not
discharge through the backwater
valve.
711.0 Suds Relief
• Drainage connections shall not be made within 8’ of any vertical to horizontal change when suds producing fixtures are present
• Bathtub, laundry sink, washing machine, kitchen sink, dishwashers are suds producing
• Parallel vent stacks shall connect
8’ above lowest point
• Exception:– Single family residence and stacks
under 3 stories
Suds Relief in the Drainage System
325 326
327 328
329 330
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715.3 Existing Sewers
• Replacement of existing building sewer and building
storm sewers using trenchless methodology and
materials shall be installed in accordance with ASTM
F1216.
• Cast-iron soil pipes and fittings shall not be repaired or
replaced by using this method aboveground or
belowground.
• Replacement using cured-in-place pipe liners shall not
be used on collapsed piping or when the existing piping
is compromised.
2018 UPC
Chapter 9 Vents
Three Basic Methods of Venting
• Combination waste and vent
• Continuous waste and vent
• Wet vent
Design Applications
• Single Duty Piping
– Vent pipe is only a vent pipe
– Drain pipe is only a drain pipe
– All sizing based upon Table 7-3, Table 7-5 and Section 904
Design Applications
• Double Duty Piping
– One pipe section may serve as a drain or vent or both
– These functions require changes in design (size, fixture type, location, length) based upon orientation
901.2 Vents Required
• Each plumbing fixture trap shall be protected against siphonage and backpressure, and air circulation shall be ensured throughout all parts of the drainage system by means of vent pipes installed in accordance with the requirements of this chapter and as otherwise required by this code.
331 332
333 334
335 336
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901.3 Trap Seal Protection
• The vent system shall be designed to prevent a trap
seal from being exposed to a pressure differential
that exceeds 1 inch water column on the outlet side
of the trap.
Correct Installation of
Fixture Vents
• Allows for equal pressure on
both sides of the fixture trap
• Air circulation is assured
throughout system
902.1 Interceptor
• Vent piping shall be
permitted to be omitted on
an interceptor where such
interceptor acts as a primary
settling tank and discharges
through a horizontal indirect
waste pipe into a secondary
interceptor.
• The second interceptor shall
be properly trapped and
vented.
Indirect Waste – Vent not Required
Vent Pipe Grades and
Connections
SECTION 905
905.2 Vent Connection to Horizontal Drain Line
337 338
339 340
341 342
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905.5 Location of Opening
• The vent pipe opening from a soil or waste
pipe, except for water closets and similar
fixtures, shall not be below the weir of the
trap.
905.5 Location of Opening
Crown Vent Crown vents
3 inches minimum
on 1-1/2 inch also
fitting problem
Improperly Installed Individual Vents906.1 Roof Termination
• ABS and PVC piping
exposed to sunlight shall
be protected by water
based synthetic latex
paints.
343 344
345 346
347 348
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906.2 Clearance906.3 Use of Roof
• Vent pipes shall be extended separately or combined, of
full required size, not less than 6 inches above the roof
or fire wall.
• Flag poling of vents shall be prohibited except where the
roof is used for Vents within 10 feet of a part of the roof
that is used for assembly purposes or parking shall
extend not less than 7 feet above such roof and shall be
securely stayed.
907.0 Vent Stacks and Relief Vents
• Each drainage stack
that extends 10 or more
stories shall be served
by a parallel vent stack
• Each such vent stack
shall also be connected
to the drainage stack at
each fifth floor
Base of the relief vent (Yoke Vent)Plumber
Yoke Vent 907.2
• The yoke vent connection to the vent stack shall be placed not less than 42 inches above the floor level, and the yoke vent connection to the drainage stack shall be using a wye-branch fitting placed below the lowest drainage branch connection serving that floor
908.1 Vertical Wet Venting
• Wet venting is limited to
vertical drainage piping
receiving the discharge
from the trap arm of one
and two fixture unit
fixtures that also serves
as a vent not exceeding
four fixtures.
908.1 Vertical Wet Venting
• Wet-vented fixtures
shall be within the
same story; exceed 6
feet in developed
length
349 350
351 352
353 354
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908.2 Horizontal Wet Venting for a Bathroom Group
908.1.2 Vent Connection
• The dry vent connection to the wet vent shall be an
individual vent for the bidet, shower, or bathtub.
• One or two vented lavatory(s) shall be permitted to
serve as a wet vent for a bathroom group.
Horizontal Wet Venting
Lav
Shower
WC
Lav
Horizontal Wet Vent
In Accordance with 2015 UPC
908.2 Horizontal Wet Venting for a Bathroom Group
• Only one wet-vented fixture drain or trap arm shall
discharge upstream of the dry-vented fixture drain
connection.
• Dry vent connections to the horizontal wet vent shall
be in accordance with Section 905.2 and Section
905.3
908.2.1 Vent Connection
Lav
Bathtub
WC
Start ofWet Vent
Wet VentEnd of
GravityDrain
908.2.2 Size
• The wet vent shall be sized based on the fixture unit discharge into the wet vent.
• The wet vent shall be not less than two (2) inches in diameter for four (4) dfu or less, and not less than three (3) inches in diameter for five (5) dfu or more.
• The dry vent shall be sized in accordance with Tables 702.1 and 703.2 based on the total fixture units discharging into the wet vent.
Lav
Bathtub
WC
Start ofWet Vent
Wet VentEnd of
GravityDrain
908.2 Horizontal Wet Venting for a
Bathroom Groups
908.2.3 Trap Arm
• The length of the trap arm shall not exceed the limits in
Table 1002.2. The trap size shall be in accordance with
Section 1003.3. The vent pipe opening from the
horizontal wet vent, except for water closets and similar
fixtures, shall not be below the weir of the trap.
355 356
357 358
359 360
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908.2.4 Water Closet
Backwater Valve
Vent rolled above the center line drainage pattern fitting used Shower is wet vented by the lav
The water closet fixture drain or trap arm connection to the wet vent shall be downstream of all fixture drain or trap arm connections to the horizontal wet vent
908.2.5 Additional Fixtures
• Additional fixtures shall discharge downstream of the wet
vent system and be conventionally vented. Only the
fixtures within the bathroom group shall connect to the
wet-vented horizontal branch.
908.2.5 Additional Fixtures
• Additional fixtures shall
discharge downstream of
the wet vent system and
be conventionally vented.
• Only the fixtures within
the bathroom group shall
connect to the wet-vented
horizontal branch.
Lav
Bathtub
WC
Start ofWet Vent
Wet VentEnd of
GravityDrain
908.2 Horizontal Wet Venting for a Bathroom
Groups
Backwater Valve
Vent rolled above the center line drainage pattern fitting used Shower is wet vented by the lav
908.2.4 Water ClosetThe water closet fixture drain or trap arm connection to the wet vent shall be downstream of all fixture drain or trap arm connections to the horizontal wet vent
Rough Plumbing Bath Room Group
TOILET Basin
Long sweep
Toilet
Basin
Shower
905.2 Horizontal Drainage Pipe. Where vents connect to a horizontal drainage pipe, each vent pipe shall have its invert taken off above the drainage centerline of such pipedownstream of the trap being served.
361 362
363 364
365 366
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Tub
Shower
Toilet
Basin
Bathroom Group
908.2.5 Additional Fixtures
• Additional fixtures shall discharge
downstream of the wet vent system and
be conventionally vented.
• Only the fixtures within the bathroom
group shall connect to the wet-vented
horizontal branch.
FIGURE 908.2A
LATERAL CONNECTIONS TO THE HORIZONTAL WET VENT 909.0 Island Sink Venting
CO
CO
CountertopKitchen Sink
1 1/2”1/8 bend
1/4 bend
Comb. wye & 1/8
2”
2”
1 1/2”
1 1/2”
Drain shall serve
no other fixtures
Island ventSink drain
Foot Vent
911.0 Circuit Venting
• 911.1.1 Multiple Circuit-Vented Branches
• Circuit-vented horizontal branch drains are permitted to
be connected together.
• Each group of a maximum of eight fixtures shall be
considered a separate circuit vent and shall be in
accordance with the requirements of this section.
367 368
369 370
371 372
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911.1.1 Multiple Circuit-Vented Branches 911.2 Vent Size and Connection
• The circuit vent shall be not less than 2 inches in
diameter and the connection shall be located
between the two most upstream fixture drains.
• The vent shall connect to the horizontal branch
on the vertical.
• The circuit vent pipe shall not receive the
discharge of a soil or waste.
911.3 Slope and Size of Horizontal Branch
• The slope of the vent section of the horizontal branch
drain shall be not more than 1 inch per foot.
• The entire length of the vented section of the horizontal
branch drain shall be sized for the total drainage
discharge to the branch.
911.3.1 Size of Multiple Circuit Vent
• Multiple circuit vented branches shall be permitted to
connect on the same floor level.
• Each separate circuit-vented horizontal branch that is
interconnected shall be sized independently in
accordance with Section 911.
• The downstream circuit-vented horizontal branch shall
be sized for the total discharge into the branch, including
the upstream branches and the fixtures within the
branch.
911.4 Relief Vent
• A 2 inch relief vent shall be provided for circuit-vented
horizontal branches receiving the discharge of four or
more water closets and connecting to a drainage stack
that receives the discharge of soil or waste from upper
horizontal branches.
373 374
375 376
377 378
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911.4.1 Connection and Installation
• The relief vent shall connect to the horizontal branch
drain between the stack and the most downstream
fixture drain of the circuit vent.
• The relief vent shall be installed on the vertical to the
horizontal branch.
911.5 Additional Fixtures
Is this illustration correct?
Multi-story condo building parking garage
Vents Tied together below the rim
Combo used for a fixture drain connection
Rough Plumbing
P-Trap with a vertical drop
Drilling or Tapping a pipe to make a connection
310.2 Drainage and Vent Piping. No drainage or vent piping shall be drilled and tapped for the purpose of making connections thereto, and no cast-iron soil pipe shall be threaded.
379 380
381 382
383 384
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Rough plumbing
Double fixture fitting
Double Combo
Island vent Right or wrong?
Must be the end of the branch
Direction of flow
What about the cleanout?
Island Vent
Toilets
Circuit vent
Multiple story venting
Washer drain
Washer box location
Yoke Vent
Washer vent connection
385 386
387 388
389 390
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Tyler ruf wal fittings
Yoke vents
Drain stack
Washer drain
Base of yoke vent
Vent stack
Plumber
Vent stack
711.0 Suds Relief.711.1 General. Where parallel vent stacks are required, they shall connect to thedrainage stack at a point 8 feet above the lowest point of the drainage stack.
391 392
393 394
395 396
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2018 IPC
Chapter 10
TRAPS, INTERCEPTORS AND SEPARATORS
1003.3 Grease interceptors
• Grease interceptors
shall comply with the
requirements of
Sections 1003.3.1
through 1003.3.8.
Grease Remediator
1003.3.2 Food waste disposers restriction
• A food waste
disposer shall not
discharge to a
grease interceptor.
Is this a problem?
1003.3.3 Additives to grease interceptors
• Dispensing systems that
dispense interceptor
performance additives to
grease interceptors shall not be
installed except where such
systems dispense microbes for
the enhancement of aerobic
bioremediation of grease and
other organic material, or for
inhibiting growth of pathogenic
organisms by anaerobic
methods.
1003.3.3 Additives to grease interceptors
• Such microbial dispensing systems shall be installed
only where the grease interceptor manufacturer’s
instructions allow such systems and the systems
conform to ASME A112.14.6.
• Systems that discharge emulsifiers, chemicals or
enzymes to grease interceptors shall be prohibited.
2018 UPC
Chapter 10
TRAPS, INTERCEPTORS AND SEPARATORS
397 398
399 400
401 402
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Waterseal Trap
• Provides a liquid seal
• Prevents sewer gas and vermin from entering the
structure
• Traps shall be separately vented except;
– As provided in other sections of the code
“Dirty Arm” – Use Only Drainage Pattern Durham Fittings
1002.4 Vent Pipe Opening
• Vent pipe
opening of trap
arm shall not
be below the
weir of the trap
since it
constitutes an
“S” trap.
Improper Fittings Used for Vent Connection
Trap Weir
Inner Edge of Vent
1007.2 Trap Seal Primers
• Potable water supply trap seal primer valves shall
comply with ASSE 1018.
• Drainage and electronic design type trap seal primer
devices shall comply with ASSE 1044.
Trap primer gravity type
Trap PrimersMultiple Trap Primer Installation
403 404
405 406
407 408
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2018 IPC
Chapter 11
STORM DRAINAGE
1103.4 Cleanout
• A cleanout shall be
installed on the
building side of the
trap and shall be
provided with access.
Reference is for combined storm drain sewers
1106.5 Parapet wall scuppers
• Where scuppers are used for primary roof drainage or
for secondary (emergency overflow) roof drainage or
both, the quantity, size, location and inlet elevation of the
scuppers shall be chosen to prevent the depth of
ponding water on the roof from exceeding the maximum
water depth that the roof was designed for as
determined by Section 1611.1 of the International
Building Code
1106.5 Parapet wall scuppers
• Scupper openings shall be not less than 4 inches in height and have a width that is equal to or greater than the circumference of a roof drain sized for the same roof area.
• The flow through the primary system shall not be considered when locating and sizing secondary scuppers.
409 410
411 412
413 414
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SECTION 1113
SUMPS AND PUMPING SYSTEMS
• 1113.1.2 Sump pit
• The pit shall be provided with access and shall
be located such that all drainage flows into the
pit by gravity.
Storm water collection and management
2018 IPC
Chapter 13
NONPOTABLE WATER SYSTEMS
1301.6 Components and materials
• Piping, plumbing components and materials used in
collection and conveyance systems shall be of material
approved by the manufacturer for the intended
application.
Image Courtesy of GRAF
1301.9.1 Location
• Any storage tank or portion thereof that is above grade
shall be protected from direct exposure to sunlight by
one of the following methods:
1. Tank construction using opaque, UV-resistant
materials such as heavily tinted plastic, fiberglass,
lined metal, concrete, wood, or painted to prevent
algae growth.
2. Specially constructed sun barriers.
3. Installation in garages, crawl spaces or sheds.
1301.9.6 Access
• Exception:
• Treated-water storage
tanks that are less than
800 gallons in volume
and installed below grade
shall not be required to
be equipped with a
manhole provided that
the tank has a service
port of not less than 8
inches in diameter.
1301.9.8 Draining of tanks
• Tanks shall be provided with a means of emptying the
contents for the purpose of service or cleaning.
• Tanks shall be drained by using a pump or by a drain
located at the lowest point in the tank.
415 416
417 418
419 420
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ON-SITE NONPOTABLE WATER REUSE
SYSTEMS
SECTION 1302
1302.1 General
• The provisions of ASTM E2635 and Section 1302 shall
govern the construction, installation, alteration and repair
of on-site non-potable water reuse systems for the
collection, storage, treatment and distribution of on-site
sources of non-potable water as permitted by the
jurisdiction.
1302.2 Sources
• Where approved and as
appropriate for the
intended application,
water from other non-
potable sources shall be
collected for reuse by on-
site non-potable water
reuse systems,
Condensate
Green house sink water
1302.8.1 Bypass valve
• Bypass valves shall
be provided with
access that allows
for removal.
• Two shutoff valves
shall not be installed
to serve as a bypass
valve.
NONPOTABLE RAINWATER
COLLECTION
AND DISTRIBUTION SYSTEMS
SECTION 1303
1303.1.1 Fire protection systems
• The storage, treatment
and distribution of non-
potable water to be
used for fire protection
systems shall be in
accordance with the
International Fire Code.
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423 424
425 426
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1303.2 Collection surface
• Rainwater shall be collected only from above-
ground impervious roofing surfaces constructed
from approved materials and where approved,
vehicular parking or pedestrian walking
surfaces.
1303.3 Debris excluders
• Downspouts and leaders shall be connected to a
debris excluder or equivalent device that is
designed to remove leaves, sticks, pine needles
and similar debris to prevent such from entering
the storage tank.
1303.4 First-flush diverter
• First-flush diverters shall operate automatically and shall
not rely on manually operated valves or devices.
• First-flush diverters shall be provided with access for
maintenance and service.
1303.12 Pumping and control system
• Mechanical equipment including pumps, valves
and filters shall be provided with access that
allows for removal in order to perform repair,
maintenance and cleaning.
1303.15.2 First-flush diverter test
• First-flush diverters shall be tested by introducing water into the collection system upstream of the diverter.
• Proper diversion of the first amount of water shall be in accordance with the requirements of Section 1303.4.
1303.15.9 Collected raw rainwater quality
• ASTM E2727 shall be used
to determine what, if any,
site conditions impact the
quality of collected raw
rainwater and whether
those site conditions require
treatment of the raw water
for the intended end use or
make the water unsuitable
for specific end uses.
427 428
429 430
431 432
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