WIXLIB

Table A-2.6.3.1.(2)A.Small CommercialMethodDivision B Appendix40

2.6.3.1. Design, Fabrication and Installation (cont.)3) In one- and two-family dwelling units and manufacturedhomes, multi-purpose systems that combine potablewater systems and residential fire sprinkler systems shallbe designed, fabricated and installed in accordance withNFPA 13D, “Installation of Sprinkler Systems in One- andTwo-Family Dwellings and Manufactured Homes.”Division BPart 241

2.6.3.2. Hydraulic Load1) Except as provided in Sentence (3), the hydraulic load ofa fixture or device that is listed in Table 2.6.3.2.A. shall bethe number of fixture units given in the Table.Division BPart 242

2012 BCPC Table 2.6.3.2.A.Fixture or Device (1)(2)Private use HydraulicLoad, FU’sPublic use HydraulicLoad, FU’sMinSize ColdHotBathroom group 6 LPF flush tank (3)n/a2.71.53.6---Bathroom group 6 LPF flush tank (3)n/a436---Bathroom group with more than 3 fixtures---(4)---Bathtub with or without shower head½”111.4334Bathtub with ¾” spout¾”7.57.5107.57.510Bedpan washer1”---7.57.510Bidet⅜”1.51.52---Clothes washer 3.5 kg½”111.4Clothes washer 6.8 kg½”---334-------Dental lavatory⅜”---1.51.52Dental unit, cuspidor⅜”---1-1Clothes washer, commercial (5)Total Cold Hot Total2.25 2.253Division B Part 243

Notes to Table 2.6.3.2.A.:1)The fixture unit values in this Table are not applicable incertain assembly occupancies because of surges in use bythe occupants. For such occupancies, refer to specificdesign information.2)For fixtures not indicated in this Table, refer to Table2.6.3.2.D.Division BPart 244

Table 2.6.3.2.D.Hydraulic Loads of Fixtures Not Listed in Table 2.6.3.2.A2012 BCPC Table 2.6.3.2.DHydraulic Load, fixture unitsSize of Supply Pipe, inchesPrivate UsePublic Use⅜12½24¾361610Division BPart 245

Notes to Table 2.6.3.2.A.(cont.):3) Bathroom group is based on a ½-inch size bathtubsupply pipe.A bathroom group is a defined term as “a group ofplumbing fixtures installed in the same room,consisting of one domestic-type lavatory, one watercloset and either one bathtub (with or without ashower) or one one-head shower.Division BPart 246

Notes to Table 2.6.3.2.A.(cont.):4) Add additional fixture to the fixture load forbathroom groupAdditional fixtures may be added to a bathroom group thatmeets the definition in 1.4.1.2.If any other fixtures, beyond those permitted incircumstances that comply with note (4) above, are fed fromthe piping that leads to a bathroom group, then the fixturesin the bathroom group must be considered individually fordetermining the fixture unit load.Division B Part 247

DWNot aBathroomGroupKSHoseBibbCWWCLavNot aBathroomGroupSHWCWCLavBTBTLavBathroom GroupHWTHose BTBibbLavWCKSCWDWBathroom Group48

2012 BCPC Table 2.6.3.2.A.Fixture or Device (1)(2)Dishwasher, commercial (5)Private use HydraulicLoad, FU’sMinSize ColdHotPublic use HydraulicLoad, FU’sTotal Cold Hot Total-------Dishwasher, domestic⅜”-1.41.4---Drinking fountain or water cooler⅜”---0.25-0.25Hose bibb½”2.5-2.52.5-2.5Hose bibb¾”3-36-6Hose bibb, combinations hot and cold½”1.91.92.51.91.92.5Lavatory, 8.3 LPM or less⅜”0.50.50.71.51.52Lavatory, greater than 8.3 LPM⅜”0.75 0.7511.51.52Sink, bar⅜”0.75 0.7511.51.52Sink, clinic service faucet½”---2.25 2.253Sink, clinic service with direct flush1”---6-6Sink, kitchen commercial, per faucet½”---334Division B Part 249

2012 BCPC Table 2.6.3.2.A.Fixture or Device (1)(2)Private use HydraulicLoad, FU’sMinSize ColdHotPublic use HydraulicLoad, FU’sTotal Cold Hot TotalSink, kitchen domestic, 8.3 LPM⅜”111.4111.4Sink, kitchen domestic, 8.3 LPM⅜”1.51.521.51.52Sink, laboratory⅜”---1.51.52Sink, laundry, 1 or 2 compartments⅜”111.4111.4Sink, service or mop basin½”---2.25 2.253Sink, washup, per faucet½”---1.51.52Shower head, 9.5 LPM or less per head½”111.4334Shower head, 9.5 LPM per head½”1.51.52334Shower, spray, multi-head, FU per head(5)111.4334Urinal, with direct flush valve¾”(6)-(6)(6)-(6)Urinal, with flush tank⅜”3-33-3Urinal, with self-closing metering valve½”2-24-4Division B Part 250

Notes to Table 2.6.3.2.A.(cont.):6) For fixture unit values for fixtures with direct flushvalves, see Sentence 2.6.3.2.(4) and Tables 2.6.3.2.Band 2.6.3.2.C.Division BPart 251

2012 BCPC Table 2.6.3.2.A.Fixture or Device (1)(2)Private use HydraulicLoad, FU’sMinSize ColdHotPublic use HydraulicLoad, FU’sTotal Cold Hot TotalWater closet, 6 LPF with flush tank⅜”2.2-2.22.2-2.2Water closet 6 LPF with flush tank⅜”3-35-5Water closet with direct flush valve1”(6)-(6)(6)-(6)Notes to Table 2.6.3.2.A.:(1)The fixture unit values in this Table are not applicable in certainassembly occupancies because of surges in use by the occupants. Forsuch occupancies, refer to specific design information(2)For fixtures not indicated in this Table, refer to Table 2.6.3.2.D.(3)Bathroom group is based on a ½-inch size bathtub supply pipe.(4)Add additional fixture to the fixture load for bathroom group.(5)Refer to manufacturer’s recommendations.(6)For fixture unit values for fixtures with direct flush valves, see Division BPart 2Sentence 2.6.3.2.(4) and Tables 2.6.3.2.B and 2.6.3.2.C.52

2.6.3.2. Hydraulic Load3) Where fixtures are supplied with both hot and coldwater, the hydraulic loads for maximum separatedemands shall be 75% of the hydraulic load of the fixtureunits given in Tables 2.6.3.2.A. and 2.6.3.2.D. when usinga detailed engineering design method.The 75% value can only be used in the detailed engineeringdesign method, of which the prescribed methods in theCode do not qualify.Division BPart 253

2.6.3.2. Hydraulic Load (cont.)4) The hydraulic load of urinals and water closets withdirect flush valves shall be the number of fixture unitslisted in Tables 2.6.3.2.B. and C. (See Appendix A.)Division BPart 254

Table 2.6.3.2.B.Sizing of Water Distribution systems for Urinals with direct Flush Valves2012 BCPC Table 2.6.3.2.BNumber of ValvesIndividual Fixture UnitAssigned in Decreasing ValuesFixture Units inAccumulative Values12020215353104548535 or more5 each58 5 each additionalNotes to Table 2.6.3.2.B:The accumulative fixture unit values are the total values to be used in conjunction withTable 2.6.3.2.A.Division BPart 255

Urinal Flush Valves#FUIncr.FUAccum.1234 420151085 ea2035455358 520354553Table A-2.6.3.B.5863¾”Ur5Ur5Ur8Ur10Ur15Ur20Flush Valve Urinals56

Table 2.6.3.2.C.Sizing of Water Distribution systems for Water Closets with direct Flush Valves2012 BCPC Table 2.6.3.2.CNumber of ValvesIndividual Fixture UnitAssigned in Decreasing ValuesFixture Units inAccumulative Values1404023070320904151055 or more10 for each public useand6 for each private use115 10 for each public useand111 6 for each private useNotes to Table 2.6.3.2.C:The accumulative fixture unit values are the total values to be used in conjunction withTable 2.6.3.2.A.57

WC Flush Valves#FUIncr.FUAccum.1234 44030201510 ea407090105115 10Table ater Closets Flush Valve58

Division BPart 259

3 FVWC’s6 Lavs8.3 L3 ) Sizing for Flush Valves60

2.6.3.4. Size2) Except as provided in Sentence (3), the size of a supplypipe that serves a fixture shall conform to Table 2.6.3.2.A.3) For fixtures listed in Table 2.6.3.2.A. that have apermitted supply pipe size of 3/8 inch, a connector notmore than 750 mm long and not less than 6.3 mm insidediameter may be used to supply water to the fixture.Division BPart 261

2.6.3.4. Size (cont.)(5) Where both hot and cold water is supplied to fixtures inresidential buildings containing one or two dwelling unitsor row houses with separate water service pipes, the watersystem may be sized in accordance with Table 2.6.3.4.where:Division BPart 262

2.6.3.4.(5) (cont.)a) the hydraulic loads for maximum separate demandson water distribution system piping are not less than 100%of the total hydraulic load of the fixture units givenin Tables 2.6.3.2.A, B, C or D for private use,b) the minimum water pressure at the entry tothe building is 200 kPa, andc) the total maximum length of water system is 90 m.Division BPart 263

Table 2.6.3.4.Water Pipe Sizing for Buildings Containing One or Two Dwelling Units or RowHouses with Separate Water Service PipesForming Part of Sentence 2.6.3.4.(5)1.5 m/s 5 ft/s2.4 m/s 8 ft/s3.0 m/s 10 ft/sSize ofWaterPipe,InchesWater Velocity, m/s3.02.41.5Hydraulic Load, fixture units½”874¾”1”21163191¼”4383571830Note to Table 2.6.3.4.:(1) Table 2.6.3.4. is not intended to limit water velocities that are specified in Sentence 2.6.3.5.(1).Division BPart 264

Notes to Table 2.6.3.4.:Table 2.6.3.4. is not intended to limit water velocities thatare permitted by Sentence 2.6.3.5.(1).Division BPart 265

2.6.3.5. Velocity1) The maximum permitted water velocities shall be thoserecommended by the pipe and fitting manufacturer.Division BPart 266

Section 2.7. Non-Potable Water Systems2.7.2.1. Markings Required(1) The location of non-potable water discharge and nonpotable water piping shall be identified by markings thatare permanent, distinct and easily recognized.Division BPart 267

A-2.7.3.2.(1) Outlets from Non-Potable Water SystemsThe location of outlets from non-potable water systemswhere they can be discharged into a sink or lavatory (i.e.bathroom sink), a fixture into which an outlet from apotable water system is discharged, or a fixture that is usedfor the preparation, handling or dispensing of food, drinkor products that are intended for human consumption,may have proven acceptable on the basis of pastperformance in some localities such as rest stops, and itsacceptance under this Code may be warranted.Division BAppendix68

A-2.7.3.2.(1) Outlets from Non-Potable Water Systems(cont.)Subclause 2.7.3.2.(1)(b) would permit non potable waterto be used to supply water closets or urinals provided thefixtures are not also connected to potable water.Division BAppendix69

2.7.4.1. Non-potable Water System Design(See Appendix A.)1) Non-potable water systems shall be designed, fabricatedand installed in accordance with good engineeringpractice, such as that described in the ASHRAE Handbooks,ASPE Handbooks and CAN/CSA-B128.1, “Design andInstallation of Non-Potable Water Systems.”Division BPart 270

A-2.7.4.1. Non-potable Water System DesignThere is a growing interest in Canada in using availablenon-potable water supplies in the place of potable ones forselected purposes such as flushing toilets and irrigatinglawns and gardens. Article 2.7.4.1. applies to non-potablewater systems regardless of the origin of the water. Thenon-potable water must meet applicable water qualitystandards as determined by an authority havingjurisdiction.Division BAppendix71

Good engineering practice would dictate that non-potablewater be of appropriate quality for the end use. TheCanadian Guidelines for Domestic Reclaimed Water for Usein Toilet and Urinal Flushing, as published by HealthCanada, provides appropriate water quality values forthose uses.Water quality values and monitoring requirements forreclaimed water are also prescribed by a regulation madeunder the Environmental Management Act (EMA).Reclaimed water is a subset of non-potable water,produced from larger volume systems accepting domesticor municipal wastewater.Division BAppendix72

Consequently, the monitoring requirements may be morestringent than necessary for smaller applications, but thewater quality values may still be taken in isolation and usedas a benchmark for non-potable water systems designed tomeet 2.7.4.1. to which the regulation under the EMA doesnot apply. The water quality values can includebiochemical oxygen demand (BOD5), turbidity (NTU) andfecal coliforms.Division BAppendix73

Note that the regulation under the EMA permits additionaluses for non-potable water under certain conditions. It isnot the intent of Section 2.7. to contradict the EMA or itsregulations, but rather, to regulate the end use of nonpotable water systems where the EMA does not apply.Division BAppendix74

Appendix A Explanatory MaterialThis Appendix is included for explanatory purposes onlyand does not form part of the requirements. Thenumbers that introduce each Appendix Note correspondto the applicable requirements in this Division. Thefigures are schematic only; they depict various parts ofthe plumbing system but do not include details. For anexplanation of the symbols and abbreviations used in thefigures, refer to the list provided at the end of the Code.Division BAppendix75

Division CPart 1 – GeneralPart 2 – Administrative ProvisionsAppendix A (Division C)76

2.2.1.2. Personnel Performing Plumbing Work1) Personnel performing installation, alteration or repair ona plumbing system shalla) possess a British Columbia tradesman's qualificationcertification as a plumber,b) be an indentured apprentice supervised by a journeymanpossessing a British Columbia tradesman's qualificationcertification as a plumber, orDivision CPart 277

2.2.2. PLUMBING DRAWINGS AND RELATED DOCUMENTS2.2.2.1. Information Required on Plumbing Drawings andRelated Documents1) If the authority having jurisdiction legally requires anapplication for a permit in respect of plumbing systems,plumbing drawings and related documents submitted withthe application for a plumbing permit shall showDivision CPart 278

2.2.2.1.(1) Information Required on Plumbing Drawingsand Related Documents (cont.)a) the location and size of every building drain and ofevery trap and cleanout fitting that is on a building drain,b) the size and location of every soil-or-wastepipe, trap and vent pipe, andc) a layout of the potable water distribution system,including pipe sizes and valves.Division CPart 279

2.3.1. ALTERNATIVE SOLUTIONS2.3.1.1. Application1) For the purposes of Clause 1.2.1.1.(1)(b) of Division A,on written request by the owner of a building or anauthorized agent of that owner, the authority havingjurisdiction shall accept a measure as an alternativesolution to an acceptable solution for the building ifsatisfied thatDivision CPart 280

2.3.1.1. Application (cont.)a) the measure will achieve at least the level ofperformance required by Clause 1.2.1.1.(1)(b) of Division A,andb) the acceptable solution does not expressly requireconformance to a provincial enactment other than theBritish Columbia Building Code.Division CPart 281

2.3.1.2.(2) Documentationb) information concerning any special maintenance oroperation requirements, including any plumbingsystem component commissioning requirements, that arenecessary for the alternative solution to achievecompliance with the Code after the plumbing system isinstalled.Division CPart 282

2.3.1.2. Documentation (cont.)6) Where more than one person is responsible forthe design of a plumbing system, a building or facility thatincludes a proposed alternative solution, the personrequesting the use of the alternative solution shall identifya single person to coordinate the preparation of thedesign, Code analysis and documentation referred to inthis Article.Division CPart 283

Part 10 – Energy and Water EfficiencySection 10.3 Water Efficiency10.3.1.2. Fixture Efficiency2012 Code did not carry forward the requirement sfor high efficiency flush water closets (4.8 lpf)under Article 10.3.1.2. introduced in October 2011.This was an oversight and will be addressed by anamendment shortly.84

10.3.1.2. Fixture Efficiency1) The flush cycle for the installation of a water closet orurinal must not exceed the flush cycle listed for thatfixture in Table 10.3.1.2.Table 10.3.1.2.Maximum Flush CycleForming part of Sentence 10.3.1.2.(1)FixtureLitresWater Closet (Tank Type)6.0Water Closet (Direct Flush)6.0Urinal (Tank Type)5.7Urinal (Direct Flush)5.785

10.3.1.2. Fixture Efficiency2) The flush cycle for the installation of a water closet orurinal in buildings classified as group C must not exceedthe flush cycle listed for that fixture in Table 10.3.1.2.(2).Table 10.3.1.2.Maximum Flush CycleForming part of Sentence 10.3.1.2.(2)FixtureWater Closet (Tank Type)Litres4.8(1)Water Closet (Direct Flush)6.0Urinal (Tank Type)5.7Urinal (Direct Flush)5.7Notes to Table 10.3.1.2.(1) A water closet which provides a dual flush cycle option of both 4.1 Lor less and 6.0 L shall be deemed to comply.86

IndexSymbols and Abbreviations – Table AddedConversion Factors - Expanded87

AL-PEX) Composite Pressure-Pipe Systems," in hot water systems. Division B Part 2 12. 2.2.10.6. Supply and Waste Fittings 1) Supply fittings shall conform to . "ASPE Plumbing Engineering Design Handbook," chapter on Cold Water Systems, and d)ASPE 2005, "ASPE Plumbing Engineering Design Handbook," chapter on Domestic .