Version_1_2016

Installation Manual

info@bunkerdry.com.auwww.bunkerdry.com.au

Version_2_2017

INSTALLATION INSTRUCTIONS FOR BUNKER DRY

1. PLANNING THE INSTALLATION IS VITALLY IMPORTANT. GENERALLY, THE MAIN CONSIDERATIONS AREAS FOLLOWS:

a) SURVEY THE BUNKER AND DETERMINE THE DEPTH OF NEW OR EXISTING DRAIN PIPE.

b) IF THE DRAIN IS EXISTING; (i) CHECK THE SIZE OF THE DRAIN PIPE. THE BUNKER DRY ATTACHES TO A STANDARD Ø100mm PVC OR Ø100mm AGG PIPE. (ii) DETERMINE THE DEPTH OF THE DRAIN PIPE. ENSURE THE DRAIN PIPE DISCHARGES FREELY TO AN OUTLET BELOW THE SURFACE OF THE BUNKER AT ITS LOWEST POINT. (iii) IDENTIFY THE ABSOLUTE LOW SPOT/S IN THE BUNKER. THINK OF A WATER WELL WHERE THE WATER WILL FLOW TO. (iv) CHECK THE DEPTH OF THE DRAIN PIPE TO THE SURFACE LEVEL OF THE BUNKER. THE DIFFERENCE BETWEEN THE INVERT OF THE PIPE AND THYE BUNKER SURFACE MUST RANGE BETWEEN 345mm AND 425mm. (v) MEASURE THE AREA OF THE BUNKER AND CHECK AGAINST BUNKER DRY'S SIZING TABLE FOR CORRECT NUMBER OF DEVICES. SIZING TABLE IS ON PAGE 18 OF THIS MANUAL. (vi) FOLLOW THE INSTRUCTION STEPS FOR INSTALLING BUNKER DRY DEVICES.

b) IF THE DRAIN IS NEW; (i) INSTALL NEW Ø100 DRAIN PIPE AND ENSURE THE PIPE IS LAID AT A MINIMUM GRADE OF 1% OR 1 IN 100. (ii) DETERMINE THE DEPTH OF THE DRAIN PIPE. ENSURE THE DRAIN PIPE DISCHARGES FREELY TO AN OUTLET BELOW THE SURFACE OF THE BUNKER AT ITS LOWEST POINT. (iii) IF AN AGG PIPE SYSTEM IS PROPOSED WITHIN THE AREA OF THE BUNKER, BUNKER DRY CAN BE ATTACHED TO THIS TYPE OF PIPE SYSTEM. (iii) IDENTIFY THE ABSOLUTE LOW SPOT/S IN THE BUNKER. THINK OF A WATER WELL WHERE THE WATER WILL FLOW TO. (iv) CHECK THE DEPTH OF THE DRAIN PIPE TO THE SURFACE LEVEL OF THE BUNKER. THE DIFFERENCE BETWEEN THE INVERT OF THE PIPE AND THYE BUNKER SURFACE MUST RANGE BETWEEN 345mm AND 425mm. (v) MEASURE THE AREA OF THE BUNKER AND CHECK AGAINST BUNKER DRY'S SIZING TABLE FOR CORRECT NUMBER OF DEVICES. SIZING TABLE IS ON PAGE 18 OF THIS MANUAL. (vi) FOLLOW THE INSTRUCTION STEPS FOR INSTALLING BUNKER DRY DEVICES.

IMPORTANT

BUNKER DRY IS A GRAVITY DRAINAGE SYSTEM. BUNKER DRY IS RELIANT ON AN EFFICIENT DRAINAGE PIPE WHICH DISCHARGES AT LEAST 345mm BELOW THE LOWEST POINT IN THE BUNKER. THE DIFFERENCE IN DEPTH ALLOWS FOR A FREE DISCHARGE WHICH IS VITAL TO ENSURE THE BEST PERFORMANCE AND FLOW RATES, THUS EVACUATING WATER FROM BUNKERS FAST.

GOLF COURSES WHICH HAVE A GENTLE SLOPE OR ARE UNDULATING, USUALLY HAVE NO DIFFICUILTY IN LAYING DRAINAGE LINES TO A FREE OUTLET, WHETHER THAT BE A STORMWATER DRAIN, CREEK, DAM OR LAKE. SOMETIMES A PURPOSE MADE DEPRESSION CAN BE UTILISED AS A TEMPORARY BASIN WHICH FILLS WHEN BUNKER DRAINAGE IS FLOWING.

WHEN INSTALLING DRAINAGE ON FLAT COURSES, OR WHERE THE WATER TABLE IS HIGH, CONSIDERATION COULD BE GIVEN TO RAISE THE SURFACE OF THE BUNKERS, OR INSTALL A BELOW GROUND STORAGE SYSTEM SIMILAR TO AN ABSORPTION TRENCH ARRAY OF A TRANSPIRATION BED. ANOTHER SOLUTION IS TO EXTEND THE LENGTH OF THE DISCHARGE DRAIN INTO THE FAIRWAY OR ROUGH.

IF IN DOUBT ABOUT WHERE TO DRAIN THE WATER, WE AT BUNKER DRY CAN ASSIST AND ADVISE A SOLUTION BASED ON SOUND ENGINEERING PRINCIPLES. WE HAVE OVER 40 YEARS EXPERIENCE IN HYDRAULIC ENGINEERING AND CAN DESIGN ANY SYSTEM TO IMPROVE DRAINAGE ON AND AROUND THE COURSE AS WELL AS THE BUNKERS.

FOR FURTHER ENQUIRIES OF ADVICE, PLEASE CONTACT RUSSELL DRUCE ON PH: +612 418 273 950EMAIL; rdruce@outlook.com OR, bunkerdry@outlook.com, OR VISIT OUR WEBSITE ATwww.bunkerdry.com.au

19

THE

THE

19

INSTALLATION INSTRUCTIONS FOR BUNKER DRY

1. PLANNING THE INSTALLATION IS VITALLY IMPORTANT. GENERALLY, THE MAIN CONSIDERATIONS AREAS FOLLOWS:

a) SURVEY THE BUNKER AND DETERMINE THE DEPTH OF NEW OR EXISTING DRAIN PIPE.

b) IF THE DRAIN IS EXISTING; (i) CHECK THE SIZE OF THE DRAIN PIPE. THE BUNKER DRY ATTACHES TO A STANDARD Ø100mm PVC OR Ø100mm AGG PIPE. (ii) DETERMINE THE DEPTH OF THE DRAIN PIPE. ENSURE THE DRAIN PIPE DISCHARGES FREELY TO AN OUTLET BELOW THE SURFACE OF THE BUNKER AT ITS LOWEST POINT. (iii) IDENTIFY THE ABSOLUTE LOW SPOT/S IN THE BUNKER. THINK OF A WATER WELL WHERE THE WATER WILL FLOW TO. (iv) CHECK THE DEPTH OF THE DRAIN PIPE TO THE SURFACE LEVEL OF THE BUNKER. THE DIFFERENCE BETWEEN THE INVERT OF THE PIPE AND THYE BUNKER SURFACE MUST RANGE BETWEEN 345mm AND 425mm. (v) MEASURE THE AREA OF THE BUNKER AND CHECK AGAINST BUNKER DRY'S SIZING TABLE FOR CORRECT NUMBER OF DEVICES. SIZING TABLE IS ON PAGE 18 OF THIS MANUAL. (vi) FOLLOW THE INSTRUCTION STEPS FOR INSTALLING BUNKER DRY DEVICES.

b) IF THE DRAIN IS NEW; (i) INSTALL NEW Ø100 DRAIN PIPE AND ENSURE THE PIPE IS LAID AT A MINIMUM GRADE OF 1% OR 1 IN 100. (ii) DETERMINE THE DEPTH OF THE DRAIN PIPE. ENSURE THE DRAIN PIPE DISCHARGES FREELY TO AN OUTLET BELOW THE SURFACE OF THE BUNKER AT ITS LOWEST POINT. (iii) IF AN AGG PIPE SYSTEM IS PROPOSED WITHIN THE AREA OF THE BUNKER, BUNKER DRY CAN BE ATTACHED TO THIS TYPE OF PIPE SYSTEM. (iii) IDENTIFY THE ABSOLUTE LOW SPOT/S IN THE BUNKER. THINK OF A WATER WELL WHERE THE WATER WILL FLOW TO. (iv) CHECK THE DEPTH OF THE DRAIN PIPE TO THE SURFACE LEVEL OF THE BUNKER. THE DIFFERENCE BETWEEN THE INVERT OF THE PIPE AND THYE BUNKER SURFACE MUST RANGE BETWEEN 345mm AND 425mm. (v) MEASURE THE AREA OF THE BUNKER AND CHECK AGAINST BUNKER DRY'S SIZING TABLE FOR CORRECT NUMBER OF DEVICES. SIZING TABLE IS ON PAGE 18 OF THIS MANUAL. (vi) FOLLOW THE INSTRUCTION STEPS FOR INSTALLING BUNKER DRY DEVICES.

IMPORTANT

BUNKER DRY IS A GRAVITY DRAINAGE SYSTEM. BUNKER DRY IS RELIANT ON AN EFFICIENT DRAINAGE PIPE WHICH DISCHARGES AT LEAST 345mm BELOW THE LOWEST POINT IN THE BUNKER. THE DIFFERENCE IN DEPTH ALLOWS FOR A FREE DISCHARGE WHICH IS VITAL TO ENSURE THE BEST PERFORMANCE AND FLOW RATES, THUS EVACUATING WATER FROM BUNKERS FAST.

GOLF COURSES WHICH HAVE A GENTLE SLOPE OR ARE UNDULATING, USUALLY HAVE NO DIFFICUILTY IN LAYING DRAINAGE LINES TO A FREE OUTLET, WHETHER THAT BE A STORMWATER DRAIN, CREEK, DAM OR LAKE. SOMETIMES A PURPOSE MADE DEPRESSION CAN BE UTILISED AS A TEMPORARY BASIN WHICH FILLS WHEN BUNKER DRAINAGE IS FLOWING.

WHEN INSTALLING DRAINAGE ON FLAT COURSES, OR WHERE THE WATER TABLE IS HIGH, CONSIDERATION COULD BE GIVEN TO RAISE THE SURFACE OF THE BUNKERS, OR INSTALL A BELOW GROUND STORAGE SYSTEM SIMILAR TO AN ABSORPTION TRENCH ARRAY OF A TRANSPIRATION BED. ANOTHER SOLUTION IS TO EXTEND THE LENGTH OF THE DISCHARGE DRAIN INTO THE FAIRWAY OR ROUGH.

IF IN DOUBT ABOUT WHERE TO DRAIN THE WATER, WE AT BUNKER DRY CAN ASSIST AND ADVISE A SOLUTION BASED ON SOUND ENGINEERING PRINCIPLES. WE HAVE OVER 40 YEARS EXPERIENCE IN HYDRAULIC ENGINEERING AND CAN DESIGN ANY SYSTEM TO IMPROVE DRAINAGE ON AND AROUND THE COURSE AS WELL AS THE BUNKERS.

FOR FURTHER ENQUIRIES OF ADVICE, PLEASE CONTACT RUSSELL DRUCE ON PH: +612 418 273 950EMAIL; rdruce@outlook.com OR, bunkerdry@outlook.com, OR VISIT OUR WEBSITE ATwww.bunkerdry.com.au

info@bunkerdry.com.au, OR bunkerdry@outlook.com, OR VISIT OUR WEBSITE AT

1. PLANNING THE INSTALLATION IS VITALLY IMPORTANT. GENERALLY, THE MAIN CONSIDERATIONS AREAS FOLLOWS:

a) SURVEY THE BUNKER AND DETERMINE THE DEPTH OF NEW OR EXISTING DRAIN PIPE.

b) IF THE DRAIN IS EXISTING; (i) CHECK THE SIZE OF THE DRAIN PIPE. THE BUNKER DRY ATTACHES TO A STANDARD Ø100mm PVC OR Ø100mm AGG PIPE. (ii) DETERMINE THE DEPTH OF THE DRAIN PIPE. ENSURE THE DRAIN PIPE DISCHARGES FREELY TO AN OUTLET BELOW THE SURFACE OF THE BUNKER AT ITS LOWEST POINT. (iii) IDENTIFY THE ABSOLUTE LOW SPOT/S IN THE BUNKER. THINK OF A WATER WELL WHERE THE WATER WILL FLOW TO. (iv) CHECK THE DEPTH OF THE DRAIN PIPE TO THE SURFACE LEVEL OF THE BUNKER. THE DIFFERENCE BETWEEN THE INVERT OF THE PIPE AND THYE BUNKER SURFACE MUST RANGE BETWEEN 345mm AND 425mm. (v) MEASURE THE AREA OF THE BUNKER AND CHECK AGAINST BUNKER DRY'S SIZING TABLE FOR CORRECT NUMBER OF DEVICES. SIZING TABLE IS ON PAGE 18 OF THIS MANUAL. (vi) FOLLOW THE INSTRUCTION STEPS FOR INSTALLING BUNKER DRY DEVICES.

b) IF THE DRAIN IS NEW; (i) INSTALL NEW Ø100 DRAIN PIPE AND ENSURE THE PIPE IS LAID AT A MINIMUM GRADE OF 1% OR 1 IN 100. (ii) DETERMINE THE DEPTH OF THE DRAIN PIPE. ENSURE THE DRAIN PIPE DISCHARGES FREELY TO AN OUTLET BELOW THE SURFACE OF THE BUNKER AT ITS LOWEST POINT. (iii) IF AN AGG PIPE SYSTEM IS PROPOSED WITHIN THE AREA OF THE BUNKER, BUNKER DRY CAN BE ATTACHED TO THIS TYPE OF PIPE SYSTEM. (iii) IDENTIFY THE ABSOLUTE LOW SPOT/S IN THE BUNKER. THINK OF A WATER WELL WHERE THE WATER WILL FLOW TO. (iv) CHECK THE DEPTH OF THE DRAIN PIPE TO THE SURFACE LEVEL OF THE BUNKER. THE DIFFERENCE BETWEEN THE INVERT OF THE PIPE AND THYE BUNKER SURFACE MUST RANGE BETWEEN 345mm AND 425mm. (v) MEASURE THE AREA OF THE BUNKER AND CHECK AGAINST BUNKER DRY'S SIZING TABLE FOR CORRECT NUMBER OF DEVICES. SIZING TABLE IS ON PAGE 18 OF THIS MANUAL. (vi) FOLLOW THE INSTRUCTION STEPS FOR INSTALLING BUNKER DRY DEVICES.

c

d

1. PLANNING THE INSTALLLATION IS VITALLY IMPORTANT, GENERALLY THE MAIN CONSIDERATIONS AREAS FOLLOWS:

a) IF THE BUNKER IS NEW, ENSURE THE SUB-STRATA BASE CAN DRAIN TO A STORMWATER PIPE, CREEK OR ANY FREE OUTLET. b) IF THE BUNKER IS EXISTING, SURVEY THE BUNKER AND DETERMINE THE DEPTH OF A NEW OR EXISTING DRAIN PIPE.

Version_v1_2017

REPLACE A DIAMETER OF 1M OF SAND WITH NEW, AROUND THE BUNKER DRY.

Version_2_2017

STEP 1. PREPARE COLLECTION PIPE.................................................................................PAGE 3

STEP 2. DRILL Ø52mm HOLE IN COLLECTION PIPE...........................................................PAGE 4

STEP 3. ATTACH SECONDARY WEIR COMPONENT...........................................................PAGE 5

STEP 4. ATTACH PRIMARY WEIR COMPONENT.................................................................PAGE 6

STEP 5. ATTACH DOME COMPONENT.................................................................................PAGE 7

STEP 6. ENSURE DOME AND WEIR GUIDES ARE ALIGNED..............................................PAGE 8

STEP 7. INSTALL GEOTEXTILE AND AGGREGATE.............................................................PAGE 9

STEP 8. PACK SAND AROUND BUNKER DRY TO STABILIZE.............................................PAGE 10

STEP 9. SET BUNKER DRY LEVEL........................................................................................PAGE 11

STEP 10. COMPLETED INSTALLATION.................................................................................PAGE 12

TYPICAL INSTALLATION DIAGRAM.......................................................................................PAGE 13

SCHEDULE OF BUNKER TYPES............................................................................................PAGE 14

CONTENTS

PAGE 2

CONTENTS

BUNKER DRY DESCRIPTION............................................................PAGE 3

BUNKER DRY COMPONENTS...........................................................PAGE 4

STEP 1 PREPARE COLLECTION PIPE (DRAIN)...............................PAGE 5

STEP 2 DRILL Ø52mm HOLE IN COLLECTION PIPE.......................PAGE 6

STEP 3 ATTACH SECONDARY WEIR COMPONENT......................PAGE 7

STEP 4 ATTACH PRIMARY WEIR.....................................................PAGE 8

STEP 5 ATTACH DOME COMPONENT.............................................PAGE 9

STEP 6 ENSURE DOME & WEIR GUIDES ARE ALIGNED...............PAGE 10

STEP 7 INSTALL GEOTEXTILE & AGGREGATE..............................PAGE 11

STEP 8 PACK SAND AROUND BUNKER DRY TO STABILISE........PAGE 12

STEP 9 SET BUNKER DRY LEVEL...................................................PAGE 13

STEP 10. COMPLETE INSTALLATION..............................................PAGE 14

STEP 11. RECORD LOCATION OF BUNKER DRY...........................PAGE 15

TYPICAL INSTALLATION DIAGRAM..................................................PAGE 16

TYPICAL INSTALLATION DIAGRAM 2..............................................PAGE 17

SCHEDULE OF BUNKER TYPES......................................................PAGE 18

PAGE 3

PAGE 4

PAGE 5

PAGE 6

PAGE 8

PAGE 9

PAGE 10

PAGE 11

PAGE 12

PAGE 14

PAGE 15

PAGE 16

MAINTENANCE.........................................................

RECORD LOCATION OF BUNKER DRY/S

..

SCHEDULE OF BUNKER TYPES..................................................... PAGE 19

TYPICAL INSTALLATION DIAGRAM 2

Page 2

SCHEDULE OF BUNKER TYPES & SIZING CHART

Version_v1_2017Version_2_2017

SURFACE OFBUNKERSAND

SUBSTRATA

TRENCHDEPTH TOSUIT

SAND

Ø100mmCOLLECTIONPIPE TO FREEOUTLET

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUBSTRATA)

INSTALLATION: STEP 1

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

265 TO 340mm

P3PAGE 3

TOP VIEW WITHBULLSEYELEVEL

SIDE VIEW WITHSHOWINGDISCHARGENOZZLE

SIDE VIEW WITHSHOWING PIPESADDLE

PAGE 3Page 3

Patent PendingVersion_v1_2017Version_2_2017

SURFACE OFBUNKERSAND

SUBSTRATA

TRENCHDEPTH TOSUIT

SAND

Ø100mmCOLLECTION PIPETO FREE OUTLET

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUBSTRATA)

INSTALLATION: STEP 2

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

DRILL A Ø50mmHOLE THROUGHTHE TOP OF THECOLLECTION PIPE

PAGE 4Page 4PAGE 4

Ø18mm BULLSEYELEVEL TO ASSISTINSTALLER.

Ø18mm STAINLESS STEELFERRULE FOR RADIODETECTION/METALDETECTOR

Ø160mm PE DOME ANDVELOCITY CHAMBER

PRIMARY WEIR ANDSECOND COMPONENTFOR VELOCITYCHAMBER

SECONDARY WEIR,NOZZLE AND PIPESADDLE

Page 4Patent Pending Version_2_2017

PAGE 5

SURFACE OFBUNKERSAND

SUB-STRATA

TRENCHDEPTH TOSUIT

SAND

Ø100mmCOLLECTIONPIPE TO FREEOUTLET

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUB-STRATA)

INSTALLATION: STEP 1

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

265 TO 340mm

Page 5

FOR BEST RESULTS,REPLACE WITH NEW SANDA METRE WIDESURROUNDING BUNKERDRY

Version_2_2017

PAGE 6Page 6

SURFACE OFBUNKERSAND

SUB-STRATA

TRENCHDEPTH TOSUIT

SAND

Ø100mmCOLLECTION PIPETO FREE OUTLET

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUB-STRATA)

INSTALLATION: STEP 2

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

DRILL A Ø50mmHOLE THROUGHTHE TOP OF THECOLLECTION PIPE

PAGE 6Page 6Version_2_2017

SURFACE OFBUNKERSAND

SUBSTRATA

TRENCHDEPTH TOSUIT

SAND

Ø100mmCOLLECTION PIPETO FREE OUTLET

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUBSTRATA)

INSTALLATION STEP 5

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

ATTACH BUNKERDRY DOME OVERPRIMARY WEIR TOCOMPLETEASSEMBLY

PAGE 7

SURFACE OFBUNKERSAND

SUB-STRATA

TRENCHDEPTH TOSUIT

SAND

Ø100mmCOLLECTION PIPETO FREE OUTLET

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUB-STRATA)

INSTALLATION STEP 3

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

ATTACHSECONDARY WEIR COMPOMENTTO PIPE THROUGHØ52mm HOLE

PAGE 7Page 7

Version_v1_2017

SURFACE OFBUNKERSAND

SUB-STRATA

TRENCHDEPTH TOSUIT

SAND

Ø100mmCOLLECTION PIPETO FREE OUTLET

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUB-STRATA)

INSTALLATION STEP 4

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

ATTACH PRIMARYWEIR COMPONENTTO SECONDARY WEIR COMPONENT

PAGE 8Page 8Version_2_2017

Version_v1_2017Page 11

SURFACE OFBUNKERSAND

SUB-STRATA

TRENCHDEPTH TOSUIT

SAND

Ø100mmCOLLECTION PIPETO FREE OUTLET

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUB-STRATA)

INSTALLATION STEP 5

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

ATTACH BUNKERDRY DOME OVERPRIMARY WEIR TOCOMPLETEASSEMBLY

PAGE 9Page 9 Version_2_2017

Version_v1_2017

SURFACE OFBUNKERSAND

SUB-STRATA

SAND

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUB-STRATA)

INSTALLATION STEP 6

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

GEOTEXTILEFABRIC

10mmAGGREGATESURROUNDINGBUNKER DRYBASE

PAGE 10Page 12Page 10Version_2_2017

Version_v1_2017

INSTALLATION STEP 6

ENSURE DOMEGUIDES ARE ALIGNEDWITH PRIMARY WEIRBLADES

PAGE 8

INSTALLATION STEP 6

PAGE 11

7

Page 11 Version_2_2017

SURFACE OFBUNKERSAND

SUB-STRATA

SAND

BASE OFBUNKER(SUB-STRATA)

SANDSAND

PACK BUNKER SANDAROUND BUNKER DRYAND ENSURE DOME ISLEVEL

INSTALLATION STEP 8

REFER TOPVEIW ABOVE

ENSURE SPIRITLEVEL IS CENTREDWHEN BUNKERSAND IS PACKEDAROUND BUNKERDRY

TOP VIEW

PAGE 13Version_2_2017

Page 12

SURFACE OFBUNKERSAND

SUBSTRATA

SAND

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUBSTRATA)

INSTALLATION STEP 7

SANDSAND

TRENCH THROUGHBUNKER. LOCATE INTHE DEEPEST PARTOF THE BUNKER

GEOTEXTILEFABRIC

10mmAGGREGATESURROUNDINGBUNKER DRYBASE

PAGE 9

INSTALLATION STEP 9

PACK BUNKER SANDAROUND BUNKER DRYAND ENSURE DOME ISLEVELPAGE 11Page 13

PACK BUNKER SAND AROUNDBUNKER DRY TO ENSURE DOMEIS LEVEL. CHECK THE BUBBLEIS LEVEL AS BACKFILLING CANMOVE THE BUNKER DRY OUTOF PLUMB.Version_2_2017

SURFACE OFBUNKERSAND

SUBSTRATA

SAND

BASE OFBUNKER(SUBSTRATA)

SANDSAND

PACK BUNKER SANDAROUND BUNKER DRYAND ENSURE DOME ISLEVEL

INSTALLATION STEP 8

REFER TOPVEIW ABOVE

ENSURE SPIRITLEVEL IS CENTREDWHEN BUNKERSAND IS PACKEDAROUND BUNKERDRY

TOP VIEW

PAGE 10Page 14

SURFACE OFBUNKER SAND ATLOW POINT/S

125 TO 200mm

SUB-STRATA

TRENCHDEPTH TOSUIT

GEOTEXTILEFABRIC

10mmAGGREGATESURROUNDINGBUNKER DRYBASE

140mm

SAND

Ø100mmCOLLECTION PIPETO FREE OUTLET

10mmAGGREGATEPIPE BEDDING

BASE OFBUNKER(SUBSTRATA)

COMPLETED INSTALLATION

BACKFILL TRENCHWITH COMPACTEDBUNKER SAND.VERY IMPORTANT TOENSURE GOODCOMPACTION

PAGE 14Page 14Version_2_2017

INSTALLATION STEP 9

PACK BUNKER SANDAROUND BUNKER DRYAND ENSURE DOME ISLEVELPAGE 11

TO OUTLET BELOW BASE OFBUNKER

BUNKERDRYDEVICE

BASE OF BUNKERSUB-STRATA 350 ~ 450mm BELOWDESIGN SURFACE

DRILL Ø52mm HOLEIN TOP OF PIPE

Ø100mm PLAIN ORCORRUGARED PIPE

SURFACE OFBUNKERSAND

NEW OREXISTINGDRAINAGEPIPE.INSTALL NEWTEE ANDCONNECTSHORTBRANCH FORBUNKER DRYAS SHOWN

CAP END OFSHORTBRANCH

TYPICAL INSTALLATION CONNECTING TO A COMMON COLLECTION PIPE. THIS IS HELPFUL WHEN THECOLLECTION PIPE HAS A GRADE OF 2% OR GREATER, AS THE BRANCH PIPE CAN BE AT 1% GRADE.

MAINTENANCETHE BUNKER DRY DEVICE IS DESIGNED TO CONVEY WATER ONLY FROM BUNKERS. THE SAND AND WATER MIX IS SEPERATEDTHROUGH THE VELOCITY CHAMBER WHICH REMOVES WATER BUT LEAVES SAND IN THE BUNKER.

THERE MAY BE TIMES WHEN THE SYSTEM BECOMES BLOCKED, LIKE ANY OTHER DRAIN, BE IT DEBRIS OR TREE ROOTS ANDSOME MAINTENENCE IS REQUIRED. THE DEVICE IS FITTED WITH A STAINLESS STEEL FERRULE WHICH ALLOWS DETECTIONBELOW THE SAND USING A METAL DETECTOR. WE ALSO RECOMMEND PLOTTING THE LOCATION OF THE DEVICE/S AS SHOWNON THE EXAMPLE SKETCH IN THIS MANUAL.

ONCE THE DEVICE HAS BEEN UNCOVERED, THE BUNKER DRY CAN BE EASILY DISASSEMBLED TO REVEAL THE COLLECTIONPIPE BELOW. THE Ø52mm HOLE IN THE COLLECTION PIPE WILL ALLOW A HOSE OR DRAIN CLEANING EQUIPMENT TO BEINSERTED INTO THE DRAIN FOR CLEANING.

WE DO NOT EXPECT MAINTENANCE TO BE UNDERTAKEN ON REGULAR INTERVALS.

THE BUNKER DRY DEVICE IS MANUFATURED FROM HIGH GRADE POLYETHYLENE WHICH WILL NOT BEAK DOWN OR CORRODEBENEATH THE SAND. YOU CAN EXPECT A LONG LIFE AND A PROBLEM FREE OPERATION OF THE BUNKER DRY DEVICE FORMANY YEARS.

Page 15

IMPORTANTDURING HEAVY STORMS OR PROLONGED RAIN, DEBRIS AND SOIL FINES CAN WASH INTO THE BUNKER AND SETTLE ON THESURFACE OF THE SAND. THIS WILL BE CONCENTRATED AT THE LOW POINT/S. SOIL FINES AND DEBRIS CAN COMBINE TOFORM A SEMI-IMPERVIOUS FILM ACROSS THE SAND WHICH LIMITS THE PERMEABILITY OF THE SAND AND THUS SLOWS THEINFILTRATION FLOW THROUGH THE SAND. THIS WILL EFFECT THE FINAL FLOWRATE THROUGH THE BUNKER DRY UNIT.BY SIMPLY RAKING THE BASE OF THE BUNKER AND REMOVING THE DEBRIS FILM, WATER WILL AGAIN BEGIN TO FLOWFREELY THROUGH THE SAND AND OUT OF THE BUNKER.

EQUALLY AS IMPORTANT, IS TO PERIODICALLY REMOVE CONTAMINATED SAND WITHIN A 1.0M RADIUSAROUND THE BUNKER DRY UNIT TO ENSURE GOOD INFILTRATION.

Version_2_2017