hand book on plumbing

7/21/2019 Hand Book on Plumbing

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HANDBOOK ON

APPLICATIONFOR

WATERSUPPLY

Published by : WaterSupply (Network)DepartmentPublicUtilities Board40 Scotts Road #10-01Environment BuildingSingapore228231

First Edition : 1979

Second Edition : 1981

Third Edition : 1993

Fourth Edition : 2004

Fifth Revision : 2009

(This Handbook orany part thereofmay not be

reproduced in any manner without the

permission of the Water Supply (Network)

Department)


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TableofContents

Page

Section 1 General

1.1 Introduction and ScopeofHandbook 11.2 ThePublicUtilities Act and thePublicUtilities (WaterSupply) 1

Regulations1.3 SingaporeStandard CodeofPracticeforWaterServices 1

Section 2 WaterQuality, ModeofSupply and Tariffs

2.1 WaterQuality and Drinking WaterStandards 22.2 WaterPressureand Availability ofWaterSupply 22.3 WaterTariffs 3

Section 3 General Information forObtaining WaterSupply

3.1 Simplified Procedure 53.2 WaterServiceWork 53.3 Class ofWaterServiceWorkers 53.4 WaterServiceWorks Requiring aProfessional Engineer 63.5 WaterServiceWorks Requiring aLicensed WaterServicePlumber 63.6 Capital Contribution from Developerand Connection Charges 63.7 Diversion ofPUB WaterMains 73.8 Turn-on ofWaterSupply 73.9 Random Checks by PUB 83.10 MaintenanceofWaterServiceInstallations 83.11 Annual Inspection and Certification ofWaterStorageTanks 93.12 Security ofWaterStorageTanks 93.13 WaterSupply to Existing Landed Residential Premises 10

Undergoing Reconstruction3.14 WaterStorageCapacity 113.15 Provision ofSeparatePiping System forNEWaterSupply in 11

Commercial and Industrial Developments

Section 4 ProcedureforWaterServiceWorks Undertaken by aProfessional Engineer

4.1 WaterServiceWorks Undertaken by Professional Engineers 13

4.2 Pre-Planning Consultation Stage 134.3 Notification ofWaterServiceWorks 14


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TableofContents

Page

4.4 Payment forCapital Contribution, Connecting Charges and 15Diversion Costs4.5 Supervision ofWaterServiceWorks 154.6 Submission ofCertificateofSatisfactory Completion of 16

WaterServiceWork4.7 Turn-on ofWaterSupply 164.8 CORENETe-Submission System 16

Section 5 ProcedureforWaterServiceWorksUndertaken

by a Licensed WaterServicePlumber

5.1 WaterServiceWork Undertaken by Licensed Water 18ServicePlumbers

5.2 Notification forWaterServiceWork Undertaken by 18Licensed WaterServicePlumbers

5.3 Payment forConnection Charges/Sub-MeterFees 195.4 Submission ofCertificateofSatisfactory Completion of 19

WaterServiceWork5.5 Turn-on ofWaterSupply 19

5.6 Temporary WaterSupply 205.7 Urgent RepairWork 205.8 Extension ofan Existing WaterServiceInstallation 205.9 Cleaning ofWaterStorageTanks 21

Section 6 Metering Requirements

6.1 WaterSupplies to beMetered 226.2 Meters 22

6.3 Recommended SizeofMeters based on Monthly Consumption 236.4 Guidelines on MeterPositions 23

Section 7 WaterFittings

7.1 WaterFittings 25

Section 8 WaterRequirements forFireServices

8.1 FireServicein Premises 268.2 StorageTanks forFire-Fighting Equipment 26


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8.3 FireSprinklerSystem 27

Section 9 WaterConservation

9.1 WaterConservation 28

Section 10 OtherTypes ofWater

10.1 NEWater 3110.2 Industrial Water 3110.3 Enquiries 3210.4 Ground WaterorWell Water 32

Appendix 1 PotableWaterQuality 33

Appendix 2 AllowableFlowRateand Timing forFittings 34

Appendix 3 Quality ofNEWater 35

Appendix 4 Quality ofIndustrial Water 36

Figure1 Standard WaterMeterCompartment at GatePillar 37(ForLanded Properties)


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SECTION1 - GENERAL

1.1 Introduction and ScopeofHandbook

1.1.1 TheWaterSupply (Network)Department of thePublicUtilities Board ischarged with the responsibility of operating and maintaining the watermains and connecting pipes up to the water meter. Water serviceinstallations downstream of a water meter shall be maintained by theconsumer.

1.1.2 This Handbook is specially prepared to assist Developers, Architects andProfessional Engineers, Licensed Water Service Plumbers, GovernmentDepartments and Statutory Boards in theirapplication forwatersupply. This

handbook also providegeneral information on watersupply matters whichmay beofinterest to all consumers. Forgeneral enquiries on watersupplymatters, pleaseemail to [email protected].

1.2 The Public Utilities Act and the Public Utilities (Water Supply)

Regulations

The Public Utilities Act and the Public Utilities (Water Supply)

Regulations set out the requirements of the Water Supply (Network)Department. This Handbook should beread in conjunction with thelatestedition of Public Utilities Act and the Public Utilities (Water Supply)Regulations.

1.3 SingaporeStandard CodeofPracticeforWaterServices

TheSingaporeStandard CP48 -CodeofPracticeforWaterServices sets outthe accepted standard of good practice in plumbing work. All plumbing

work should comply with this CodeofPracticewhich is availableforsaleattheStandards, Productivity and Innovation Board (SPRINGSingapore), 2Bukit Merah Central, Singapore159835.


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SECTION2 -WATERQUALITY, MODE OFSUPPLYANDTARIFFS

2.1 WaterQuality and Drinking WaterStandards

2.1.1 Water supplied by the Board is within the guidelines for Drinking WaterQuality set by theWorld Health Organisation (WHO).

2.1.2 Water supplied to the western and eastern parts of the Island has slightlyhighercontent ofchlorideand Total Dissolved Solids (TDS)than therest oftheIsland.

2.1.3 Wateris fluoridated.

2.1.4 The typical chemical and bacteriological quality of the water is shown inAppendix 1. Should there be any query on the water quality, theDeveloper/Consultant/Consumer is advised to consult Deputy Director,Planning, Design & Water Quality Division, Water Supply (Plants)Department oremail to [email protected].

2.2 WaterPressureand Availability ofWaterSupply

2.2.1 The water pressure available at different parts of the Island varies

depending on the elevation of the land and on the time of the day.Generally the Water Supply (Network) Department maintains a water

pressurecapableof supplying directly to water fittings not exceeding 25metres above mean sea level. This means that water supply to waterfittings above this level has to be indirect via water storage tanks. Thedaily waterpressurein thedistribution system varies with theconsumption

pattern, being at thehighest when theconsumption is minimum and lowestwhen consumption is at the peak. The following mode of supply (asstipulated in SS CP48 Code of Practice for Water Services) is to beadopted:

Height ofHighest FittingsAboveMean SeaLevel ModeofSupply

a. Not exceeding 25 metres Direct supply to fittings fromPUB mains.

b. Above25 metres but not Indirect supply throughexceeding 37 metres high level waterstoragetank.


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c. Above37 metres Indirect supply through low levelwater storage tank with pumping

to high level waterstoragetank.

2.2.2 The high level water storage tanks should have a minimum capacityequivalent to 24 hours consumption.

2.2.3 Formode(c), which is to beadopted forwatersupply to premises and tallbuildings beyond the reach of direct mains pressure, the water from theAuthoritys mains will flow through a meter/ master meter to a low leveltank with float-operated valve control. From the low level tank, pumps(with duplicatein caseofbreakdown)will deliverthewater to high level

tanks of storage capacity equivalent to one days water requirements tocaterforbreakdown and emergencies. Thehigh level storagetanks are to

be provided with compartments and the pipework so arranged to enablemaintenance and cleaning to be carried out without interruption to thewatersupply. Thelowlevel tank shall belocated such that theinlet to thelow level tank is below137 metres reduced level. Where the inlet to thelow level tank is between 125 metres and 130 metres reduced level, thestoragecapacity ofthelowlevel tank should besized to beat least 1/5 ofthedaily waterrequirements. Wheretheinlet to thelowlevel tank is above130 metres reduced level, the capacity of the low level tank should be

sized to beat least 1/3 of thedaily water requirements. The total storagecapacity ofthelowlevel and thehigh level tanks should beequivalent toone day s water requirements of the water service installations to be served

by thetanks.

2.2.4 Notwithstanding themodes ofwatersupply, waterstoragetanks should beprovided for premises such as hospitals, industrial premises and otherimportant installations for the purpose of maintaining a continuous andsteady supply ofwater in the event of interruptions to the water supply.

Theownerofpremises with thehighest water fittings not exceeding 125metres reduced level is allowed to determinethestoragecapacity required.Where the owner decides to provide a storage capacity of less than onedays water requirements, the owner shall undertake to bear fullresponsibility for the water storage needed to meet the operationalrequirements ofthepremises and shall not hold theAuthority responsibleforany interruption ofwatersupply.


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2.3 WaterTariffs

2.3.1 Thetariffs presently applicableto thevarious categories ofconsumers areasfollows:

a. DomesticTariffb. Non-domesticTariffc. Tariffforshipping

2.3.2 Thescheduleoftariffs is subject to changeby amending thePublicUtilities(Tariffs forWater)Regulations madeby theBoard from timeto time.

2.3.3 Should therebeachangein useofpremises from domesticto non-domesticor vice versa, the consumer is advised to write in to the Water Supply

(Network)Department forachangein thetariffwithin 7 days from thedateofsuch changein use.


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SECTION 3 - GENERAL INFORMATION FOR OBTAINING WATER

SUPPLY

3.1

Simplified Procedure

3.1.1 Under the simplified procedure introduced for thedesign and installationof water service installations wi thin the customer s premises,waterserviceworkers havefull control overthewaterserviceworks undertheirchargeand they no longer need to obtain PUBs approvaland apply for PUBsinspection beforeturn on ofwatersupply.

3.1.2 In brief, the new procedure requires the water service workers to notifyPUB beforecommencement ofwaterserviceworks by submitting thesite

plans and schematic drawings of the water service installation. Uponcompletion ofthewaterserviceworks, waterserviceworkers arerequiredto submit aCertificateofSatisfactory Completion ofWaterServiceWorkcertifying that the water service installation is completed in accordancewith thePublicUtilities (WaterSupply)Regulations, SingaporeStandardCP48 Code of Practice for Water Services, all other relevant statutoryrequirements and otherPUB requirements.

3.2 WaterServiceWork

Waterservicework shall only becarried out by awaterserviceworkerofan appropriate class as prescribed by the latest edition of the PublicUtilities Act and the Public Utilities (Water Supply) Regulations.Developer/Consumershall engagean appropriatewaterserviceworker todesign, construct, alter or repair at his own cost the water serviceinstallation within his premises to convey thesupply ofwaterfrom PUB.

3.3 Class ofWaterServiceWorkers

3.3.1 Therearetwo classes ofwaterserviceworkers, namely:

a. A Professional Engineer (PE) registered under the ProfessionalEngineers Act.

b. ALicensed WaterServicePlumber(LWSP).


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3.3.2 A list of Licensed Water Service Plumbers can be found on the PUBswebsite at http://www.pub.gov.sg. Any verification can also be made bycalling TelephoneNo. 1800-7362055 (Toll-free).

3.4 WaterServiceWorks Requiring a Professional Engineer

3.4.1 A Professional Engineer (PE) is required to be engaged by theDeveloper/Consumer to design and submit notification to PUB for anywater service installation that requires pumping equipment or waterstorage tank and heshall beresponsiblefor the supervision ofany waterservicework undertaken on his behalfby alicensed waterserviceplumber(LWSP).

3.4.2 Theprocedureforwaterservicework requiring aPEis outlined in Section4.

3.5 WaterServiceWorks Requiring a Licensed WaterServicePlumber

3.5.1 A licensed water service plumber (LWSP) (subject to any conditionsendorsed in the license) is entitled to carry out any water service work

provided that :

a. he may only design any water service installation which is to beinstalled downstream afterthemeterposition; and

b. he shall not design any water service installation which requirespumping equipment orwaterstoragetank.

3.5.2 The procedure for water service work requiring an LWSP is outlined inSection 5.

3.6 Capital Contribution fromDeveloperand Connection Charges

3.6.1 Developerwill beadvised whetheracapital contribution is required fromhim for the laying ofnewwatermains. Any capital contribution must be

paid outright to PUB before mainlaying commences. In addition, theDeveloper has to pay such costs estimated by PUB for laying ofconnecting pipes from PUB mains to thedevelopment.


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3.6.2 Developers applying for water supply to their private propertydevelopment need only pay astandard connection chargedepending on thesizeofconnection to thedevelopment. Theconnecting pipewill then be

laid from thePUB watermain to themeterposition after thepayment ismade.

3.6.3 Developers ofmulti-unit privateproperty developments which do not fallunder the ambit of the Land Titles (Strata) Act shall design and installmains, connections, pumping stations and elevated reservoirs within thedevelopment in accordance wi th the PUB s requirements and for purposesofoperation and maintenance, hand them over, togetherwith the land (ifrequired), to thePUB freeofcharge. Vesting oftheland, upon which such

pumping stations and elevated reservoirs arelocated, to theBoard shall be

freeofchargeand freefrom encumbrances. In addition, theDeveloperwillbecharged thestandard connection charge for thecost ofconnecting themains by them to PUB main based on thestandard connection charges insection 3.6.2.

Note: Section 3.6.2 and 3.6.3 do not apply to developments on offshoreislands and temporary watersupply.

3.7 Diversion ofPUB WaterMains

If the existing water mains within the proposed site are affected by theproposed development, diversion of water mains may be required. Thisdiversion cost will be borne by the Developer, in addition to theconnection charges described in Section 3.6.2.

3.8 Turn-on ofWaterSupply

When all water service works are completed and certified by the

appropriateclass ofwaterserviceworkers, theConsumer/Ownerwill needto open an account for turn-on of water supply at theNEA CustomerServiceCentrelocated at Level 2, Environment Building , 40 Scotts Road,Singapore228231.PEorLWSP will arrangewith PUB fortheinstallationofwatermeterand adeposit will becharged beforewater supply can beturned on. Generally, aminimum of 4 working days notice must be given

beforethesupply turn-on datefornewpremises.


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3.9 RandomChecks by PUB

3.9.1 PUB will carry out checks on completed water service installation on a

random basis. Where the water service installation is found to be not incompliance with the requirements specified, PUB will require the waterservice worker or the owner/developer or consumer to alter, repair orrectify thewaterserviceinstallation to themannerrequired by PUB

3.9.2 PUB will not be liable for any cost or expense incurred byowner/developer orconsumer to alter, repair or rectify the water serviceinstallation to themannerrequired by PUB.

3.9.3 PUB will have theright to refuseto connect its supply to any newwater

service installation or to disconnect from its supply any existing waterservice installation which does not conform to therequirements specifiedon 3.9.1 until such timeas therequirements arecomplied with.

3.10 MaintenanceofWaterServiceInstallations

3.10.1 Awaterserviceinstallation shall bemaintained:

a. forso long as such waterserviceinstallation is connected to receive

watersupplied by theBoard; and

b. by thefollowing persons:

(i) in respect of the water service installation between themaster meter and the sub-meter, by the consumer who isliable to pay for the consumption registered by the mastermeter;

(ii) in respect of the water service installation after the sub-

meter, by the consumer who is liable to pay for theconsumption registered by thesub-meter; and

(iii) in respect of the water service installation after the meter(not being amastermeterorasub-meter), by theconsumerwho is liable to pay for the consumption registered by themeter.

3.10.2 Any person who is required underparagraph 3.10.1(b)to maintain any partofawaterserviceinstallation shall:


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a. maintain and ensure the security of that part of the water serviceinstallation in accordancewith thePublicUtilities (Water Supply)Regulations and any applicable requirement specified in any

standard, code of practice or guidelines adopted or issued by theBoard: and

b. notify theBoard immediately ofany contamination ofwaterin thatpart ofthewaterserviceinstallation which comes to his knowledge.

3.11 Annual Inspection and Certification ofWaterStorageTanks

Forany part ofawaterserviceinstallation having any waterstoragetank,

except in residential premises without master meter, the consumerresponsible for the maintenance of that part of the water serviceinstallation is required to engage not less frequently than once every 12months, alicensed waterserviceplumberto inspect, and wherenecessary,to clean and disinfect thewaterstoragetank and certify that :

a. the water storage tank is fit and safe for the storage of water forhuman consumption;

b. the water contained in the water storage tank is free from

contamination or pollution and that there is no likelihood of suchcontamination orpollution;

c. water samples taken from the tank pass the appropriate chemicaland bacteriological examinations;

d. thewaterstoragetank is properly maintained; and

e. thereis no leakageand no likelihood ofleakagein thewaterserviceinstallation, including thewaterstoragetank.

3.12 Security ofWaterStorageTanks

Forany part ofawaterserviceinstallation having any waterstoragetankfrom which waterforhuman consumption is drawn, except in residential

premises without master meter, the consumer responsible for the


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maintenance of that part of the water service installation is required toensurethat:

a. no person, except with theauthority oftheconsumer, has access to:

(i) thestoragetank (including any tap fitted to thestoragetank)and its ancillary equipment; or

(ii) the premises where the storage tank and its ancillaryequipment arelocated;

b. thestoragetank (including any tap fitted to thestoragetank)and itsancillary equipment, and the premises where storage tank and itsancillary equipment are located, are kept properly locked at all

times;

c. checks are conducted regularly for the purpose of ascertainingwhethersub-paragraph b is being complied with;

d. properrecords arekept of:

(i) persons granted access to thestoragetank (including any tapfitted to thestoragetank)and its ancillary equipment, orthe

premises wherethestoragetank and its ancillary equipment

arelocated, undersub-paragraph a; and

(ii) checks conducted undersub-paragraph c

and that such records are made available for inspection by theBoards officers; and

e theBoard is notified immediately ofany unauthorized access to thestorage tank (including any tap fitted to the storage tank) or itsancillary equipment which comes to his knowledge.

3.13 WaterSupply to Landed Residential Premises

For landed residential premises with water fittings above 125m RL,owners havetheflexibility ofdeciding when they would liketo install thewater tank. Owners who opt to install the water tank at a later date,however, must make the necessary provision now for the space andstructural loading forinstalling thetank in futurewhen necessary.


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3.14 WaterStorageCapacity

Thefollowing considerations affect thestoragecapacity:

a thenumberofcustomers;

b. thetypeofbuilding; and

c. Thenumberoffittings to beserved

Each case should be judged based on its merits, but for generalguidance, thefollowing tablemay beused.

TypeofBuilding StorageinLitres per Head

Dwelling houses andflats 150*

Hostels 90

Hotels 135

Offices without canteens 35

Officeswith canteens 45

Schools 15

* Based on an averageconsumption of20m3/month forprivateresidential house

oran apartment with 4 to 5 persons.

3.15 Provision of Separate Piping System for NEWater Supply in

Commercial and Industrial Developments

NEWater will be supplied for air conditioning cooling towers inbuildings and for suitable process water use in industrial premises. AseparateNEWaterpipelinenetwork will bebuilt that will eventually reach

these buildings and industrial premises. All new commercial andindustrial development proposals are therefore required to provide adedicatedNEWaterpipesystem nowto takeinNEWaterwhen thesupply

becomes available. For locations where theNEWater pipeline networkwill only beavailableafter2011, spaceprovisions need to bemadenowfor the new development proposals to facililtateNEWater pipe systeminstallation in future.


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SECTION4 - PROCEDURE FOR WATER SERVICE WORKS

UNDERTAKENBYAPROFESSIONAL ENGINEER

4.1 WaterServiceWork Undertaken by Professional Engineers

The type of water service work undertaken by Professional Engineers(PEs)aregiven in section 3.4. Theprocedureinvolves 6 stages as follows:

a Pre-Planning Consultation with PUB;b Notification ofWaterServiceWork Undertaken by PE;c Payment for Capital Contribution, Connection Charges and

Diversion Cost (ifapplicable);d Supervision ofWaterServiceWork by PE;

e Submission of Certificate of Satisfactory Completion of WaterServiceWork;

f Turn-On ofWaterSupply.

4.2 Pre-Planning Consultation Stage

4.2.1 PEs shall consult PUB as early as possible on matters pertaining to thesupply ofwaterto theproposed development. PEs shall direct all enquiriesto WaterSupply (Network)Department.

4.2.2 The common issue that may be discussed during the pre-planningconsultation stageincludes:

a. availability ofwatermains in thedevelopment vicinity;b. modeofwatersupply;c. position ofmeter;d. risk ofcontamination to PUB network through backflow; ande. impact on existing mains and installation, etc.

4.2.3 PEs shall providelocation and layout plans togetherwith details such as:

a. estimated waterrequirements;b. typeofdevelopment;c. phasing ofdevelopment;d. platform level ofdevelopment;e. reduced level ofhighest direct supply waterfittings;


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f. temporary watersupply requirement during construction stage; andg. approximate date of completion of project including date when

watersupply is expected to beturned-on.

4.3 Notification ofWaterServiceWorks

4.3.1 Priorto thecommencement ofwaterservicework, PEwill need to submit1 set of site plan, 1 set of water reticulation schematic drawing to PUBtogether with a notification form (Notification of Water Service Work)stating thefollowing :

a. waterrequirement (breakdown ofwaterrequirement is needed ifthewaterrequirement exceeds 1000m3/month);

b. dateofcommencement;c. dateofexpected completion; andd. particulars oftheLicensed WaterServicePlumber(LWSP)(referto

section 4.5).

4.3.2 Notifying PUB before commencement of water service work is amandatory requirement.

4.3.3 In addition, PEwill need to declareand certify that

a. the water service installation is designed in full compliance with thePublicUtilities (WaterSupply)Regulations, SingaporeStandard CP 48Code of Practice for Water Services, other Authori ties requirements,relevant statutory requirements and other PUB s requirements;

b. potable water storage tanks are not located below sanitary pipes andothernon-potablepipes;

c. all thewaterfittings to beinstalled in thewaterserviceinstallation willcomply with standards prescribed/stipulated by PUB; and

d. all waterconservation measures will beadopted.


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4.4 PaymentforCapital Contribution, Connecting Charges and Diversion

Costs

WherePUBwater mains arenot available

4.4.1 A feasibility study on the provisions of a water supply scheme in theproposed area shall bemadeby PUB. TheDeveloper/Consultant will beadvised in writing on the required capital contribution, if any, or therequirements to provide the necessary water supply infrastructure withinhis development as described in Section 3.6.1. Ifacapital contribution isrequired, theDeveloper/Consultant will haveto makethepayment beforemainlaying commences.

WherePUBwater mains areavailable

4.4.2 Diversion of existing watermains may be required if theexisting mainsare affected by the proposed development. Developer/Consultant will beadvised on the diversion charges and payment will have to be made toPUB beforediversion commences.

4.4.3 Ifacapital contribution is required, theDeveloper/Consultant will havetomakethepayment beforemainlaying commences. Similarly, ifadiversionofwatermains is required, Developer/Consultant has to makethepayment

to PUB beforediversion commences.

4.4.4 The capital contribution/diversion charge is in addition to the waterconnection charges orcosts to bepaid forlaying theconnecting pipefromthePUB main to themeterposition. Timetaken formainlaying, diversionand installation ofwaterconnecting pipedepends on natureand magnitudeofthework.

4.4.5 Payment oftheconnection charges, thecapital contribution (ifrequired)ordiversion cost can bemadeat PUB ServiceCentrelocated at UpperFirst

Storey, 111 Somerset Road #01-09.

4.5 Supervision ofWaterServiceWorks

PE shall properly supervise any water service work undertaken on hisbehalfby aLWSP and ensure that theLWSP does not do or omit to doanything in contravention oftherequirements.


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4.6 Submission ofCertificate ofSatisfactory Completion ofWaterService

Work

Within 7 days upon completion ofthewaterservicework, theProfessionalEngineer shall inspect the water service installation and submit aCertificateofSatisfactory Completion to PUB to certify thefollowing:

a. water service installation carried out by licensed water serviceplumberhas been completed and found to bein accordancewith thePublic Utilities (Water Supply) Regulations, Singapore Standard(SS)CP 48 CodeofPracticeforWaterServices, any requirementsimposed by PUB, other Authori ties requirements and otherrelevant statutory requirements;

b. potable water storage tanks shall not be located below sanitarypipes and othernon-potablewaterpipes;

c. all thewaterfittings installed in thewaterserviceinstallation areofthe types that comply with standards prescribed / stipulated byPUB; and

d. water service installation and theassociated electrical devices andequipment have been tested and are safe and acceptable for

operation.


Where applicable, water supply will be turned on upon receipt of theCertificateofSatisfactory Completion ofWaterServiceWork and aftertheOwner/Developerhas opened an account with PUB as described in Section3.8.

4.8 CORENET e-Submission System

PUB is one of the agencies participating in Building and ConstructionAuthoritys (BCA) CORENET e-Submission System. PEs areencouragedto execute the above procedures through the CORENET e-SubmissionSystem. Information on the system can be found on http://www.corenet-ess.gov.sg/. Forgeneral enquiry on thee-submission system, you can writeto :


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CORENETe-Submission AdministratorBuilding & Construction Authority

Maxwell Road #02-00TowerBlock, MNDComplexSingapore069110


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SECTION5 - PROCEDURE FOR WATER SERVICE WORKS

UNDERTAKEN BY A LICENSED WATER SERVICE

PLUMBER

5.1 WaterServiceWork Undertaken by Licensed WaterServicePlumbers

The type of water service work undertaken by Licensed Water ServicePlumbers are given in section 3.5. The procedure involves 4 stages asfollows:

a. Notification forwaterservicework;b. Payment forconnection charges/ sub-meterfees (ifapplicable);c. Submission of Certificate of Satisfactory Completion of Water

ServiceWork; andd. Turn-on ofwatersupply (ifapplicable)

5.2 Notification for Water Service Work Undertaken by Licensed Water

ServicePlumbers

The procedure for notifying PUB on water service work undertaken byLicensed WaterServicePlumberareas follows:

a. Prior to the commencement of water service work, the licensedwaterserviceplumberis to submit anotification form (Notificationof Water Service Work Form) to PUB. Alternatively, thenotification form can be submitted through BCAs CORENET e-Submission System.

b. Notifying PUB before commencement of water service work is amandatory requirement.

c. A site plan indicating the location of the water meter, schematic

drawing ofthewaterreticulation system and breakdown ofthewaterrequirement (for cases > 1000 m3/mth) shall be attached with the

Notification ofWaterServiceForm.

d. On receipt oftheNotification ofWaterServiceWork, areply will besent to theDeveloper/Ownerwith acopy sent to theLicensed WaterServicePlumber. Whereapplicable, aquotation forpayment to PUBwill beattached to thereply.


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5.3 PaymentforConnection Charges/ Sub-MeterFees

Payment to thePUB forthecosts ofthenewconnection, sub-meterfees, etc.

as given in the quotation can be made at PUB Service Centre located atUpper First Storey, 111 Somerset road #01-09. . Where applicable, theconnecting pipewill belaid from thePUB main to themeterposition after

payment is madeby thedeveloper/owner.

5.4 Submission ofCertificate ofSatisfactory Completion ofWaterService

Work

Within 7 days upon completion of the water service work, the Licensed

WaterServicePlumbershall notify theWaterSupply (Network)Departmentthat thework is completed using aCertificateofSatisfactory Completion ofWaterServiceWork to certify thefollowing:

e. thewater service installation carried out by licensed water serviceplumberhas been completed and found to bein accordancewith thePublic Utilities (Water Supply) Regulations, Singapore Standard(SS)CP 48 CodeofPracticeforWaterServices, any requirementsimposed by PUB, other Authori ties requirements and otherrelevant statutory requirements;

f. thepotablewaterstorage tanks shall not be located belowsanitarypipes and othernon-potablewaterpipes;

g. all thewaterfittings installed in thewaterserviceinstallation areofthe types that comply with standards prescribed / stipulated byPUB;

h. the water service installation and the associated electrical devicesand equipment have been tested and are safe and acceptable for

operation;


Where applicable, water supply will be turned on upon receipt of theCertificateofSatisfactory Completion ofWaterServiceWork and aftertheOwner/Developerhas opened an account with PUB as described in Section3.8.


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5.6 Temporary WaterSupply

5.6.1 Developer/Consultant must apply to the Water Reclamation (Network)Department forsanitary and drainagefacilities fortheconstruction site.

5.6.2 Simultaneously, Developer/Consultant must engage a Licensed WaterServicePlumberand thesameprocedureas provided in section 5.2 shall beadopted by thewaterserviceplumber. Watersupply will beturned on uponreceipt oftheCertificateofSatisfactory Completion ofWaterServiceWorkand after production of written clearance from the Water Reclamation(Network)Department.

5.7 UrgentRepairWork

5.7.1 Urgent repairwork on defectivepipes and fittings insidepremises may becarried out by a Licensed Water Service Plumber without submitting theusual notification forms priorto proceeding with theurgent repairwork.

5.7.2 The Licensed Water Service Plumber shall submit a Certificate ofSatisfactory Completion ofWater Service Work not later than seven daysaftercompletion oftheurgent repairwork.

5.7.3 "Urgent repairwork"shall not mean extension oraddition ofextrafittings to

theexisting waterserviceinstallation.

5.8 Extension ofan Existing WaterServiceInstallation

5.8.1 When aLicensed WaterServicePlumberproposes to carry out an extensioninvolving fixing ofnot morethan oneextrafitting, hemay proceed with thework at his convenience, and upon completion, heshall notify WaterSupply(Network) Department using a Certificate of Satisfactory Completion thatsuch extension is completed.

5.8.2 This information shall be submitted not later than seven days aftercompletion ofwork.

5.8.3 For extension of an existing water service installation and fixing of morethan one extra fitting, the same procedure as provided in section 5.1 tosection 5.5 shall beadopted by theLicensed WaterServicePlumber.


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5.9 Cleaning ofWaterStorageTanks

Whereawaterserviceworkerproposes to clean awaterstoragetank in any

premises, thesameprocedureshall beadopted as provided in section 5.2.


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SECTION6 - METERING REQUIREMENTS

6.1 WaterSupplies to beMetered

Metering of water supply is practised in Singapore and except with theconsent oftheWaterSupply (Network)Department, no supply ofwaterwill

begiven unless through ameter.

6.2 Meters

6.2.1 Thefollowing aretheterms used to describedifferent functions ofmeters:

a meter - any appliance or device supplied by PUB tomeasure, ascertain orregulatetheamount ofwatertaken orused from thesupply ofPUB.

b master-meter - meter registering water all or part of which issubsequently registered by one or more sub-meters.

c sub-meter - meter owned and maintained by PUB whichregisters all orpart ofany waterwhich has already

been metered sinceleaving thewatermain.Afeeof$20 (exclusiveofGST)is payablepersubmeterforapplication with morethan onesubmeter.

6.2.2 Every meterwill be fixed and maintained by theWater Supply (Network)Department and will remain the property of the Water Supply (Network)Department.

6.2.3 All residential units must bemetered individually forthewaterconsumption.

6.2.4 A master and sub-meter scheme is applicable for multi-unit residential,commercial and industrial premises. Underthis scheme, wateris supplied tomulti-unit premises through mastermeters which registerthetotal volumeofwaterused in thepremises. Themastermeteraccount holdershall pay forthewatercharges based on thedifferencebetween theregistration ofthemastermeterand all thesubmeters, including leakages.


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6.2.5 Any property with oneassessment numberwill begranted oneand only onemeter. However, thefollowing exceptions may bemade:

a If there are separate tenants occupying houses or apartments whichhaveseparateentrances, kitchens and bathroom facilities, onemeterperhouseorapartment is permitted.

b If a building is divided into entirely and absolutely separateapartments with separate entrances and if the same tariff is notapplicable to all the apartments, then one meter per apartment is

permitted.

6.3

Recommended SizeofMeters based on Monthly Consumption

Thefollowing tablegives therecommended sizeofmeters based on monthlyconsumption ofwater:-

SizeofMeter(mm) 15 25 50 100 150

Recommended MaximumConsumption (m3)perMonth 130 700 5,000 20,000 45,000

6.4 Guidelines on MeterPositions

Theposition ofthemeterto beinstalled at any premises shall bedeterminedby theWaterSupply (Network)Department. Watermeters shall beinstalledaboveground. As aguide, themetershall beinstalled in such aposition thatit can be easily accessible for meter installation, reading and maintenancework and at the same time its position should be unobtrusive. For new

privatelanded housing developments, standard metercompartment as shownin Figure 1, shall be provided at the gate pillars. For renovation projectsinvolving construction or reconstruction of gate pillars, customers arestrongly encouraged to includethis standard metercompartment at thegate

pillars. Big meters of sizes 25 mm and above, fitted above ground andoutsidethebuilding should behoused in suitablebrick orconcretechamberswith drainage outlets. The chamber is to be constructed by and at theexpense of the Developer/Owner. The design of the meter chamber (seedetails in SingaporeStandard CP 48)shall comply with therequirements oftheUrban Redevelopment Authority and/orotherrelevant Authorities and besubject to theapproval oftheWater Supply (Network)Department.


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SECTION7 - WATERFITTINGS

7.1 WaterFittings

7.1.1 Developer/Consultant/Owner shall ensure that all water fittings to be usedshall comply with the Standards and requirements stipulated by PUB andtheiruse in water service installations shall conform to the PublicUtilities(Water Supply) Regulations and Singapore Standard CP 48 Code ofPracticeforWaterServices.

7.1.2 Awaterfitting shall bedeemed to comply with thestipulated Standards ifitis certified or tested as complying with such Standards by a productcertification body or a testing laboratory accredited by the Singapore

Accreditation Council (SAC) or its Mutual Recognition Arrangement(MRA)partners.

7.1.3 Alist of thestipulated Standards and requirements which thewaterfittingsshall comply with can befound at PUB's websiteat http://www.pub.gov.sg.If the Standards and requirements forawater fitting are not available, thedeveloper/consultant/owner shall approach PUB to stipulate the necessaryStandards and requirements forcompliance.


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SECTION8 - WATERREQUIREMENTS FORFIRE SERVICES

8.1 FireServicein Premises

8.1.1 TheWaterSupply (Network)Department shall benotified ofthefireservicein premises wheresuch aserviceis necessary orexpedient to enablewaterto

be drawn from the PUB supply for the purpose of abating fire in suchpremises and whereall necessary approvals have been obtained (from theBuilding Control Division and theFireSafety & ShelterDepartment). Suchfire servicewill have to include the provision of adequate storage tank ortanks, togetherwith thenecessary ancillary equipment, pipes and fittings tomeet theflowand otherrequirements as specified by therelevant authorities.

8.1.2 Thecost of thefireservice including all connections to thePUB main andtheprovision ofany meterwill haveto beborneby theDeveloper/Owner.

8.1.3 The design of fire service system including private hydrants shall alsocomply with themodeofsupply as stipulated in SingaporeStandard CP48 -CodeofPracticeforWaterServices (seeSection 2.2 ofthis handbook).

8.1.4 In viewofthefluctuation in pressurein PUB watermains, storagetanks withpumping equipment should thereforebeprovided to maintain asatisfactoryfire-fighting service to meet the requirements of theFireSafety & Shelter

Department and to comply with therelevant codeofpracticeforfireservice.TheWaterSupply (Network)Department however, shall not beresponsiblefor damage or loss caused by disconnection, diminution or failure of thesupply dueto waterrestriction orany othercauses.

8.2 StorageTanks forFire-Fighting Equipment

Astoragetank forfire-fighting is not apotableserviceand it is essential toensurethat:

a. Apotableservice(fordomesticpurpose)shall not derive its watersupply from a non-potable fire service where separate tanks are

provided.


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b. A non-potable fire service may derive its water supply from a

potableserviceiftheformeris provided with an approved anti-backflow (anti-siphonic) device or fitting(s) installed in an approvedmanner to avoid any possibility of contamination by the reverseflowofwater.

c. Tanks supplying water fordomesticpurposes should not beused assuction tanks forwet rising mains.

d. Arrangements can bemadeforthedomesticsupply to bedrawn offinsuch amanner that the requisite reserve ofwater for thewet rising

main is always preserved. Such arrangements must have the priorapproval of the Water Supply (Network) Department and the FireSafety & ShelterDepartment.

8.3 FireSprinklerSystem

8.3.1 A separate main of adequate size shall be laid from the meter position tosupply thesprinklersystem only. This main shall beprovided with adoublecheck valveassembly. Theconnection and installation ofsprinklershall be

carried out in accordancewith therequirements oftheFireSafety & ShelterDepartment.

8.3.2 All tubing used forafiresprinklershall begiven adistinct separatecolourpaint to avoid any possibility of cross-connection made through wrongidentification ofdifferent pipesystem in thebuilding.

8.3.3 Water in the sprinkler system shall be drained off periodically by theoperation ofa'drain-cock'.

8.3.4 Owners wishing to install a fire sprinkler system are advised to provide astorage tank of sufficient capacity, if necessary with pumping facilities, inorderto maintain continuous supply at all times.

8.3.5 Thewholemetersystem (potableas well as fire-fighting)shall behoused inasuitablechamber.


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SECTION9 -WATERCONSERVATION

9.1 WaterConservation

9.1.1 It is important that potablewateris used efficiently and effectively at alltimes. Waterconservation measures as required by PUB must thereforebeadopted in bothdomesticand non-domesticpremises, includingconstruction sites in orderto conservewater.

9.1.2 Only waterproducts and fittings that arelabeled underPUB s MandatoryWaterEfficiency Labelling Schemeshall beinstalled and used. Thewaterefficiency ratings undertheSchemeareas shown below:

WaterProducts/Fittings

Zero TickRating

1 Tick Rating 2 Tick Rating 3 TickRating

ShowerTaps &Mixers (Litres /min)

> 9 > 7 to 9 > 5 to 7 5 orless

Basin Taps &Mixers (Litres / min)

> 6 > 4 to 6 > 2 to 4 2 orless

Sink/Bib Taps(Litres / min)

> 8 > 6 to 8 > 4 to 6 4 orless

Flushing Cisterns -Dual Flush (Litres /flush)

NA > 4.0 to 4.5 (fullflush)

> 2.5 to 3.0 (lowflush)

> 3.5 to 4.0 (fullflush)

> 2.5 to 3.0 (lowflush)

3.5 orless(full flush)

2.5 orless(lowflush)

Urinals & UrinalFlush Valve(Litres /flush)

NA > 1.0 to 1.5 > 0.5 to 1.0 0.5 orless

orwaterlessurinals

9.1.3 Thewaterconservation measures to beadopted at various areas includethefollowing:

a All new domesticand non-domesticdevelopments, existing domesticand non-domesticpremises under renovations

Only water fittings, apparatus, appliances and products that arelabelled with at least a1-tick waterefficiency rating and aboveunderPUBsMandatory WaterEfficiency Labelling Schemeshall beinstalled and used.


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b Toilets/Washrooms in all domesticand non-domesticpremises

All new premises and premises undergoing renovations whichinvolvethereplacement ofwaterclosets shall only beinstalled with dual-

flush low capacity flushing cisterns. This is applicable to all domesticpremises. For non-domestic premises such as commercial/industrialpremises, this is only applicableifflushing cisterns areto beused. Publictoilets shall as required by theNational Environment Agency (NEA) befitted with flush valves.

c Toilets/Washrooms in all non-domestic premises (including thecommon amenities of condominium)

i) Install self-closing delayed-action taps at all wash basins.

ii) Install self-closing delayed-action shower taps at all showerpoints.

iii) Install constant flow regulators at all wash basin mixers,showermixers and bib taps.

d Kitchens/Stalls/Cooking areas in all non-domesticpremises

Install constant flowregulators at all sink tapsand mixers.

e Canteens (excluding cooking areas)

Install self-closing delayed-action taps at all wash basins and washtroughs.

f Laboratories

Install constant flow regulators at all wash basin and sink tapsexcept forsafety reasons.

g Vehiclewashing areas

i) Construct earth removal platforms and waterrecovery systemsforwashing ofvehicles at construction sites.

ii) Construct water recovery systems or adopt other waterconservation measures as prescribed by PUB at vehiclewashing point for other premises where washing of vehiclesarerequired.

h Condominium, Residential apartment Units/ Hotel rooms / Massagerooms /Hospital wards / Family-typehostel units

Install constant flow regulators at all wash basin taps, wash basinmixers, showertaps, showermixers, bib taps, sink taps and mixers.


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i Other areas in domestic (where applicable) and non-domesticpremises.

i) Wherever possible, use alternate sources of water (such asindustrial water, high grade industrial water, sea water,

NEWateretc)fornon-potableuses such as production process,cooling, irrigation, general washing, fire-fighting, etc.

ii) Set up water pre-treatment plant for boiler usage to reduceboilerblowdown.

iii) Set up water recovery system for boilers, wherever possible,to recovercondensateas make-up water.

iv) Set up water recycling system, whereverpossible, to reclaim

process water for reuse in the production process and othernon-potablepurposes such as cooling, irrigation, etc.

v) Usenon-watercooled (such as air-cooled, refrigerant-cooled,etc)systems forcooling purposes whereverpossible.

vi) Recycling facilities shall be incorporated into any bath whichhas a capacity, measured to the overflow level of the bath,exceeding 250 litres.

vii) Install privatewatermeters to measurewaterconsumption atvarious areas such as cooling towers, swimming pools,

kitchens, guestrooms, gardens, landscaped areas, toilets,boilers, etcand to monitorand track thewaterconsumption attheseareas forwaterusageand leakagecontrol management.

9.1.4 Water conservation measures as stipulated in the Public Utilities (WaterSupply) Regulations and Singapore Standard CP48 - Code of Practice forWaterServices must also beadopted.

Note:

1) Constant flowregulators arenot required where(i)thewaterpressureat thefittings is less than 1 baror(ii)thewaterfitting is labelled with at least a1-tick waterefficiency rating.

2) All water fittings provisions for disabled shall be in accordance with therequirements stipulated in the BCAs Code on Barrier Free Accessibility inBuildings

3) All allowable flowrates and timing for self-closing delayed action taps,constant flowregulators and otherwaterfittings and appliances aregiven inAppendix 2.


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4) For all new developments and premises undergoing renovations, onlywater products and fittings that are labelled with at least a 1 tick waterefficiency rating and above shall be installed and used. For other

instances, ifazero tick tap ormixeris used, it is to be installed with theappropriate constant flow regulator to achieve the flow rates shown inAppendix 2.


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SECTION10 -OTHERTYPES OFWATER

10.1 NEWater

10.1.1 NEWater refers to the high quality water recovered from the final treatedeffluent from our Water Reclamation Plants, using the latest membranetechnologies. The typical quality ofNEWater is given in Appendix 3 as aguide.

10.1.2 At present,NEWateris availablein:

Ulu Pandan Cluster - Western and Central areas such as Jurong Island,Tuas, Jurong and City

Bedok Cluster - Eastern Areas such as, PasirRis, Tampines, Bedok,Changi, Chai Cheeand LoyangKranji Cluster -Northern areas such as Woodlands, Kranji and

YishunSeletarCluster -North-eastern areas such as Ang Mo Kio

10.1.3 High-tech manufacturing industry, such as waferfabrication plants, furthertreat NEWater to ultra-pure water standards for their processes use.

NEWater is also used for non-potable purposes, such as for industrialprocesses, airconditioning cooling towerand general washing.

10.2 Industrial Water

10.2.1 Industrial Water (IW) is a source of water supply from Jurong IndustrialWaterWorks fornon-potableuse. IWis obtained by furthertreating thefinaleffluent from Ulu Pandan WaterReclamation Plant, to astandard suitableforusein industrial applications. Thetypical quality ofIWis given in Appendix4 as aguide.

10.2.2 IWis only supplied to industries on Jurong Island.

10.2.3 Companies using IW include chemical plants and petroleum refineries.IWis generally used forcooling applications.


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10.3 Enquiries

Any enquiries on the supply of NEWater should be made to

[email protected] [email protected]

Enquiries on the supply ofNEWatercan also be submitted through thefollowing webpageaddress: http://www.pub.gov.sg/NEWater

10.4 Ground WaterorWell Water

Application to extract ground waterand any enquiry should bemadeto:

ChiefEngineerCentral Building Plan Unit

National Environment Agency40 Scotts Road #12-00ENVBuildingSingapore228231


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Appendix 1

PotableWaterQuality (Typical Values)

Chemical &PhysicalCharacteristics

(In mg/l whereapplicable)

*WaterfromChoa Chu Kang

&Bedok

Waterworks

**WaterfromOther

Waterworks

WHO GuidelineValues (1993)

Colour(Hazen Unit)Turbidity (NTU)

pHValueConductivity (umhos/cm)TasteOdour

Nitrate(asN03)

Fluoride(as F)Total Dissolved SolidTotal Alkalinity (as CaCO3)Total Hardness (as CaCO3)Chloride(as Cl)Sulphate(as SO4)Phosphate(as PO4)Silica(as SiO2)Iron (as Fe)Manganese(as Mn)Copper(as Cu)Aluminium (as A1)

Residual Chlorine(as Cl, Total)***

< 5< 5

7.0 9.0250 550

UnobjectionableUnobjectionable

0.5 7.0

0.5 0.7200 350

20 5050 10035 10030 60< 0.101 10< 0.04< 0.05< 0.05< 0.10


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Appendix 2

ALLOWABLE FLOW RATE ANDTIMING FORSELFCLOSING

DELAYEDACTIONTAPS

Area ofUsage Specification

i) Basin Tap

Flowratenot morethan 6 L/min and timing between 2

and 3 sec.

Useofspecial sensortap with flowrateof2L/min,

watersupply automatically cut offwhen hand is

removed from thetap orthepreset timing ofnot more

than 30 / 60 seconds is reached, whicheveris earlier.

ii) ShowertapFlowratenot morethan 9 L/min and timing between 13

and 15 sec.

ALLOWABLE FLOW RATE FORCONSTANT FLOW REGULATORS

(Applicableto All Types ofPremises)


i) Basin Tap Flowratenot morethan 6 L/min

ii) Sink / Kitchen tap

and wash area Flowratenot morethan 8 L/min

iii)ShowerFlowratenot morethan 9 L/min

(except forHotels to beremained at 12 L/min)

iv) Otherareas Flowratenot morethan 8 L/min

Note: Constant flowregulatorarenot required where(i)the waterpressureat thefitting is less than 1baror(ii)thewaterfitting is labelled with at least a1-tick waterefficiency rating. As aguide,theseregulators need to beinstalled only wherethestaticpressureat thefitting exceeds 1.5bar.

BEST PRACTICES ONWATERCONSERVATIONFLOW RATE


i) Basin Tap & SelfClosing Delay Action

Basin TapsFlowratenot morethan 2 L/min

ii) Sink / Kitchen tap and wash area Flowratenot morethan 4 L/min

iii)ShowerTap & SelfClosing Delay Action

ShowerTap

Flowratenot morethan 5 L/min

iv) Otherareas Flowratenot morethan 4 L/min


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Appendix 3

Quality ofNEWater(Typical Values)

Parameters

(in mg/l unless otherwisestated)NEWaterquality

1 Aluminium (Al) < 0.1

2 AmmonicalNitrogen (asN) < 1.0

3 Barium (Ba) < 0.1

4 Boron (B) < 0.5

5 Calcium (Ca) 4 20

6 Chloride(Cl) < 20

7 Colour(Hazen units) < 5

8 Conductivity ( S/cm) < 250

9 Copper(Cu) < 0.05

10 Fluoride(F) < 0.5

11HeterotrophicPlateCount (CFU/ml, 35oC,

48 h)< 300

12 Iron (Fe) < 0.04

13 Manganese(Mn) < 0.05

14 Nitrate(NO3) < 15

15 pHvalue 7 8.5

16 Silica(SiO2) < 3

17 Sodium (Na) < 20

18 Strontium (Sr) < 0.1

19 Sulphate(SO4) < 5

20 Total Dissolved Solids < 15021 Total Hardness (CaCO3) < 50

22 Total OrganicCarbon < 0.5

23 Total Residual Chlorine(Cl) < 2

24 Total Trihalomethanes < 0.08

25 Turbidity (NTU) < 5

26 Zinc(Zn) < 0.1

27 Total Coliform Bacteria (Counts / 100ml) Not detectable

28 Enterovirus Not detectable


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Appendix 4

QUALITYOFINDUSTRIAL WATER(TYPICAL VALUES)

PARAMETERS

(INMG/L UNLESS OTHERWISE STATED)

INDUSTRIAL

WATER

1 Colour(Hazen Units) 10 - 20

2 Turbidity (NTU) 0.5 - 2.0

3 pHValue 6.8 - 7.3

4 BOD5(5 days at 20oC) 1.0 - 5.0

5 Suspended Solids < 8

6 Total Solid 350 - 1,300

7 Dissolved Oxygen 3.5 - 7.0

8 FreeAmmonia < 5

9 Chlorideas Cl- 100 - 500

10 Total Hardness as CaCO3 100 - 250

11 Phosphateas P (PO4-P) 1 - 4

12 Alkalinity as CaCO3 30 - 80

13 Conductivity (umhos/cm) 600 - 1,600


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GASMETER

COMPARTMENT

( TO COMPLY WITH

POWER GASLTD'S

REQUIREMENTS)

ELECTRICITY METER

COMPARTMENT

( TO COMPLY WITH

POWER SUPPLY LTD'S

REQUIREMENTS)

6MM THICK GLASSOR

POLYCARBONATE

( SHOULD NOT TURN

YELLOW ON EXPOSURE

TO UV LIGHT )

HANDLE

50

A A150

300

DOOR OF 28 DIA

NON-INFLAMMABLE COPPER

MATERIAL

( WITHOUT LOCK )

ELEVATION SECTION 1 - 1

1

450

WATER METER

COMPARTMENT

150

75

SMOOTH FINISH

200

1NOTES

1. ALLDIMENSIONS AREIN MILLIMETRES

PLAN A - A 2. SCALE:NTS

FIGURE 1: STANDARDWATER METER COMPARTMENT AT GATE PILLAR

(FOR LANDEDPROPERTIES)

hand book on plumbing

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