ARKANSAS ODE PLUMBING - International Code Council

26 Pages·2008·0.33 MB·English

2006
A
RKANSAS
P
LUMBING
C
ODE
SUPPLEMENT – SEPTEMBER 2008
Based on the 2006
International Plumbing Code®
CHAPTER 3
GENERAL REGULATIONS
SECTION 301 damagingoroverloadingthebuildingdrainageorsewersys-
GENERAL tem,orcapableofinterferingwiththenormaloperationofthe
sewagetreatmentprocesses,shallnotbedeposited,byanyme-
301.1 Scope. The provisions of this chapter shall govern the
ans, into such systems.
generalregulationsregardingtheinstallationofplumbingnot
specific to other chapters. 302.2Industrialwastes.Wasteproductsfrommanufacturing
301.2 System installation. Plumbing shall be installed with orindustrialoperationsshallnotbeintroducedintothepublic
due regard topreservationof thestrength of structuralmem- seweruntilithasbeendeterminedbythecodeofficialorother
bers and prevention of damage to walls and other surfaces authorityhavingjurisdictionthattheintroductionthereofwill
through fixture usage. notdamagethepublicsewersystemorinterferewiththefunc-
tioning of the sewage treatment plant.
301.3 Connections to the sanitary drainage system. All
plumbingfixtures,drains,appurtenancesandappliancesused
toreceiveordischargeliquidwastesorsewageshallbedirectly
SECTION 303
connected to the sanitary drainage system of the building or
MATERIALS
premises,inaccordancewiththerequirementsofthiscodeora
Health-Department-approved disposal system. This section 303.1Identification.Eachlengthofpipeandeachpipefitting,
shall not be construed to prevent the indirect waste systems trap,fixture,materialanddeviceutilizedinaplumbingsystem
required by Chapter 8. shall bear the identification of the manufacturer.
301.4Connectionstowatersupply.Allpremisesintendedfor
303.2 Installation of materials. All materials used shall be
humanhabitation,occupancy,oruseshallbeprovidedwitha
installedin strictaccordance with the standards under which
supplyofpotablewater,neitherconnectedwithunsafewater
thematerialsareacceptedandapproved.Intheabsenceofsuch
supplies not subject to the hazards of backflow or
installationprocedures,themanufacturer’sinstallationinstruc-
backsiphonage. Every plumbing fixture, device or appliance
tionsshallbefollowed.Wheretherequirementsofreferenced
requiring or using water for its proper operation shall be
standards or manufacturer’s installation instructions do not
directlyorindirectlyconnectedtothewatersupplysystemin
conformtominimumprovisionsofthiscode,theprovisionsof
accordance with the provisions of this code.
this code shall apply.
301.5Pipe,tubeandfittingsizes.Unlessotherwisespecified,
303.3Plasticpipe,fittingsandcomponents.Allplasticpipe,
the pipe, tube and fitting sizes specified in this code are
fittings and components shall be third-party certified as con-
expressedinnominalorstandardsizesasdesignatedintheref-
forming to NSF 14.
erenced material standards.
303.4 Third-party testing and certification. All plumbing
301.6 Prohibited locations. Plumbing systems shall not be
productsandmaterialsshallcomplywiththereferencedstan-
located in an elevator shaft or in an elevator equipment room.
dards,specificationsandperformancecriteriaofthiscodeand
Exception:Floordrains,sumpsandsumppumpsshallbe shall be identified in accordance with Section 303.1. When
permittedatthebaseoftheshaftprovidedtheyareindirectly requiredbyTable303.4,plumbingproductsandmaterialsshall
connected to the plumbing system. either be tested by an approved third-party testing agency or
301.7 Conflicts. Where conflicts between this code and the certified by an approved third-party certification agency.
conditions of the listing or the manufacturer’s installation
instructions occur, the provisions of this code apply.
SECTION 304
Exception:Whereacodeprovisionislessrestrictivethan
RODENTPROOFING
theconditionsofthelistingoftheequipmentorapplianceor
themanufacturer’sinstallationinstructions,theconditions 304.1 General. Plumbing systems shall be designed and
of the listing and manufacturer’s installation instructions installedinaccordancewithSections304.2 through 304.4 to
shall apply. prevent rodents from entering structures.
304.2Strainerplates.Allstrainerplatesondraininletsshall
SECTION 302 bedesigned and installedso thatallopenings arenot greater
EXCLUSION OF MATERIALS DETRIMENTAL than 0.5 inch (12.7 mm) in least dimension.
TO THE SEWER SYSTEM
304.3Meterboxes.Meterboxesshallbeconstructedinsucha
302.1Detrimentalordangerousmaterials.Ashes,cindersor mannerthatrodentsarepreventedfromenteringastructureby
rags;flammable,poisonousorexplosiveliquidsorgases;oil, wayofthewaterservicepipesconnectingthemeterboxand
greaseoranyotherinsolublematerialcapableofobstructing, the structure.
ARKANSAS PLUMBING CODE 15
GENERAL REGULATIONS
TABLE 303.4
PRODUCTS AND MATERIALS REQUIRING THIRD-PARTY TESTING AND THIRD-PARTY CERTIFICATION
PRODUCT OR MATERIAL THIRD-PARTY CERTIFIED THIRD-PARTY TESTED
Portable water supply system components and
Required —
potable water fixture fittings
Sanitary drainage and vent system components Plastic pipe, fittings and pipe-related components All others
Waste fixture fittings Plastic pipe, fittings and pipe-related components All others
Storm drainage system components Plastic pipe, fittings and pipe-related components All others
Plumbing fixtures — Required
Plumbing appliances Required —
Backflowprevention devices Required —
Water distribution system safety devices Required —
Special waste system components — Required
Subsoil drainage system components — Required
304.4Openingsforpipes.Inoronstructureswhereopenings besleevedunderslabunlessotherwiserequiredbytheman-
havebeenmadeinwalls,floorsorceilingsforthepassageof ufacturer’s instructions.
pipes,suchopeningsshallbeclosedandprotectedbytheinstal-
305.6 Freezing. Water, soil and waste pipes shall not be
lationofapprovedmetalcollarsthataresecurelyfastenedtothe
installedoutsideofabuilding,inatticsorcrawlspaces,con-
adjoining structure.
cealedinoutsidewalls,orinanyotherplacesubjectedtofreez-
ingtemperatureunlessadequateprovisionismadetoprotect
such pipes from freezing by insulation or heat or both. Tub
SECTION 305 valves, tub and shower valves or shower valves shall not be
PROTECTION OF PIPES AND installedinoutsidewalls.Exteriorwatersupplysystempiping
PLUMBING SYSTEM COMPONENTS shall be installed not less than 6 inches (152 mm) below the
frostlineandnotlessthan12inches(305mm)belowgrade.
305.1Corrosion.Pipespassingunderand/orthroughconcrete
Frostresistantautomaticdrainingtypewallhydrantswithhigh
orcinderwallsandfloorsorothercorrosivematerialshallbe
orlowhazardvacuumbreakersisrequiredforalloutsidewalls
protectedagainstexternalcorrosionbyaprotectivesheathing
or in other places subject to freezing.
or wrapping or other means that will withstand any reaction
from thelimeand acidof concrete, cinder or other corrosive 305.7 Waterproofing of openings. Joints at the roof and
material.Sheathingorwrappingshallallowforexpansionand aroundventpipes,shallbemadewatertightbytheuseoflead,
contractionofpipingtopreventanyrubbingaction.Minimum copper,galvanizedsteel,aluminum,plasticorotherapproved
wall thickness of material shall be 0.025 inch (0.64 mm). flashingsorflashingmaterial.Exteriorwallopeningsshallbe
made water tight.
305.2Breakage.Pipespassingthroughorunderwallsshallbe
protected from breakage. 305.8 Protection against physical damage. In concealed
locationswherepiping,otherthancast-ironorgalvanizedsteel,
305.3Stressandstrain.Pipinginaplumbingsystemshallbe isinstalledthroughholesornotchesinstuds,joists,raftersor
installed so as to prevent strains and stresses that exceed the similarmemberslessthan1.5inches(38mm)fromthenearest
structural strength of the pipe. Where necessary, provisions edgeofthemember,thepipeshallbeprotectedbyshieldplates.
shall be made to protect piping from damage resulting from Protective shield plates shall be a minimum of
expansion, contraction and structural settlement. 0.062-inch-thick(1.6mm)steel,shallcovertheareaofthepipe
wherethememberisnotchedorbored,andshallextendamini-
305.4Sleeves.Annularspacesbetweensleevesandpipesshall
mum of 2 inches (51 mm) above sole plates and below top
be filled or tightly caulked in an approved manner. Annular
plates.
spaces between sleeves and pipes in fire-resistance-rated
assembliesshallbefilledortightlycaulkedinaccordancewith 305.9Protectionofcomponentsofplumbingsystem.Com-
this code and theArkansas Fire Prevention Code. ponentsofaplumbingsysteminstalledalongalleyways,drive-
ways, parking garages or other locations exposed to damage
305.5Pipesthroughorunderfootingsorfoundationwalls.
shall be recessed into the wall or otherwise protected in an
Anypipethatpassesunderafootingorthroughafoundation
approved manner.
wallshallbe provided with a relieving arch, or a pipe sleeve
pipeshallbebuiltintothefoundationwall.Thesleeveshallbe
two pipe sizes greater than the pipe passing through the wall.
305.5.1PEXandorCPVC.PEXorCPVCinstalledforthe
purposeofwaterdistributionpipingshallnotberequiredto
16 ARKANSAS PLUMBING CODE
WATER SUPPLY AND DISTRIBUTION
lessthan 6 inches(152 mm) abovetheroof or roof drain; pressuretanksshallnotbelocateddirectlyunderanysoilor
floororfloordrain;oroveranopenwater-suppliedfixture. waste piping or any source of contamination.
Theoverflowoutletshallbecoveredwithacorrosion-resis-
606.5.9Pressuretanks,vacuumrelief.Allwaterpressure
tantscreenofnotlessthan16by20meshperinch(630by
tanksshallbeprovidedwithavacuumreliefvalveatthetop
787meshperm)andby0.25-inch(6.4mm)hardwarecloth
ofthetankthatwilloperateuptoamaximumwaterpressure
or shall terminate in a horizontal angle seat check valve.
of200psi(1380kPa)anduptoamaximumtemperatureof
Drainagefromoverflowpipesshallbedirectedsoasnotto
200ºF (93ºC). The minimum size of such vacuum relief
freeze on roof walks.
valve shall be 0.50 inch (12.7 mm).
TABLE 606.5.4
Exception: This section shall not apply to pressurized
SIZES FOR OVERFLOW PIPES FOR WATER SUPPLY TANKS
captive air diaphragm/bladder tanks.
MAXIMUM CAPACITY OF WATER DIAMETER OF OVERFLOW PIPE
SUPPLY LINE TO TANK (gpm) (inches) 606.5.10Pressurerelieffortanks.Everypressuretankina
hydropneumaticpressureboostersystemshallbeprotected
0 - 50 2
withapressurereliefvalve.Thepressurereliefvalveshall
50 - 150 21/2 besetatamaximumpressureequaltotheratingofthetank.
Thereliefvalveshallbeinstalledonthesupplypipetothe
150 - 200 3
tankoronthetank.Thereliefvalveshalldischargebygrav-
200 - 400 4 ity to a safe place of disposal.
400 - 700 5
606.6Watersupplysystemtest.Uponcompletionofasec-
700 - 1,000 6 tionofortheentirewatersupplysystem,thesystem,orportion
completed, shall be tested in accordance with Section 312.
Over 1,000 8
For SI: 1 inch = 25.4 mm, 1 gallon per minute = 3.785 L/m.
SECTION 607
606.5.5Low-pressurecutoffrequiredonboosterpumps. HOT WATER SUPPLY SYSTEM
A low-pressure cutoff shall be installed on all booster
607.1Whererequired.Inresidentialoccupancies,hotwater
pumps in a water pressure booster system to prevent cre-
shallbesupplied toallplumbing fixturesandequipmentuti-
ationofavacuumornegativepressureonthesuctionsideof
lizedforbathing,washing,culinarypurposes,cleansing,laun-
thepumpwhenapositivepressureof10psi(68.94kPa)or
dry or building maintenance. In nonresidential occupancies,
less occurs on the suction side of the pump.
hot water shall be supplied for culinary purposes, cleansing,
606.5.6Potablewaterinletcontrolandlocation.Potable laundry or building maintenance purposes. In nonresidential
waterinletstogravitytanksshallbecontrolledbyafillvalve occupancies,hotwaterortemperedwatershallbesuppliedfor
orotherautomaticsupplyvalveinstalledsoastopreventthe bathingandwashingpurposes.Temperedwatershallbesup-
tankfromoverflowing.Theinletshallbeterminatedsoasto plied through a water temperature limiting device that con-
provideanairgapnotlessthan4inches(102mm)abovethe forms to ASSE 1070 and shall limit the tempered water to a
overflow. maximumof110ºF(43ºC).Thisprovisionshallnotsupersede
the requirement for protective shower valves in accordance
606.5.7Tankdrainpipes.Avalvedpipeshallbeprovided with Section 424.3.
atthelowestpointofeachtanktopermitemptyingofthe
607.2 Hotwatersupplytemperaturemaintenance.Where
tank. The tank drain pipe shall discharge as required for
thedevelopedlengthofhotwaterpipingfromthesourceofhot
overflowpipesandshallnotbesmallerinsizethanspecified
water supply to the farthest fixture exceeds 100 feet (30 480
in Table 606.5.7.
mm), the hot water supply system shall be provided with a
TABLE 606.5.7 methodofmaintainingthetemperatureinaccordancewiththe
SIZE OF DRAIN PIPES FOR WATER TANKS Arkansas Energy Conservation Code.
TANK CAPACITY (gallons) DRAIN PIPE (inches) 607.2.1 Piping insulation. Circulating hot water system
Up to 750 1 piping shallbeinsulatedinaccordance withtheArkansas
Energy Conservation Code.
751 to 1,500 11/
2
[E]607.2.2Hotwatersystemcontrols.Automaticcircu-
1,501 to 3,000 2
lating hot water system pumps or heat trace shall be
3,001 to 5,000 21/ arranged to be conveniently turned off, automatically or
2
manually, when the hot water system is not in operation.
5,000 to 7,500 3
607.2.3Recirculatingpump.Whereathermostaticmixing
Over 7,500 4
valve is used in a system with a hot water recirculating
For SI: 1 inch = 25.4 mm, 1 gallon = 3.785 L. pump,thehotwaterortemperedwaterreturnlineshallbe
routedtothecoldwaterinletpipeofthewaterheaterandthe
606.5.8 Prohibited location of potable supply tanks. coldwaterinletpipeorthehotwaterreturnconnectionof
Potable water gravity tanks or manholes of potable water the thermostatic mixing valve.
ARKANSAS PLUMBING CODE 43
WATER SUPPLY AND DISTRIBUTION
607.3 Thermal expansion control. A means of controlling backflow with a reduced pressure principle backflow
increasedpressurecausedbythermalexpansionshallbepro- preventer,anatmosphericorspill-proofvacuumbreaker,or
videdwhererequiredinaccordancewithSections607.3.1and anairgap.Vacuumbreakersforbedpanwasherhosesshall
607.3.2. notbelocatedlessthan5feet(1524mm)abovethefloor.
Vacuumbreakersforhoseconnectionsinhealthcareorlab-
607.3.1Pressure-reducingvalve.Forwaterservicesystem
oratoryareasshallnotbelessthan6feet(1829mm)above
sizesuptoandincluding2inches(51mm),adeviceforcon-
the floor.
trollingpressureshallbeinstalledwhere,becauseofther-
mal expansion, the pressure on the downstream side of a 608.4Waterservicepiping.Waterservicepipingshallbepro-
pressure-reducing valve exceeds the pressure-reducing tected in accordance with Sections 603.2 and 603.2.1.
valve setting.
608.5Chemicalsandothersubstances.Chemicalsandother
607.3.2 Backflow prevention device or check valve. substancesthatproduceeithertoxicconditions,taste,odoror
Whereabackflowpreventiondevice,checkvalveorother discolorationinapotablewatersystemshallnotbeintroduced
deviceisinstalledonawatersupplysystemutilizingstorage into, or utilized in, such systems.
water heating equipment such that thermal expansion
608.6 Cross-connection control.Crossconnections shallbe
causesanincreaseinpressure,adeviceforcontrollingpres-
prohibited, except where approved protective devices are
sure shall be installed.
installed.
607.4Flowofhotwatertofixtures.Fixturefittings,faucets
608.6.1 Private water supplies. Cross connections
anddivertersshallbeinstalledandadjustedsothattheflowof
betweenaprivatewatersupplyandapotablepublicsupply
hotwaterfromthefittingscorrespondstotheleft-handsideof
shall be prohibited.
the fixture fitting.
608.7 Stop-and-waste valves prohibited. Combination
Exception: Shower and tub/shower mixing valves con-
stop-and-waste valves or cocks shall not be installed under-
formingtoASSE1016orCSAB125,wheretheflowofhot
ground.
water corresponds to the markings on the device.
608.8Identificationofpotableandnonpotablewater.Inall
607.5Hottodishwashingmachines.Dishwashingmachines,
buildings where twoor more waterdistribution systems,one
orsimilardishwashingequipmentnotinprivatelivingquarters
ordwellingunits,shallbeprovidedwithwaterat180°F(82° potable water and the other nonpotable water, are installed,
eachsystemshallbeidentifiedeitherbycolormarkingormetal
C) and not more than 194°F (90°C).
tags in accordance with Sections 608.8.1 through 608.8.3.
608.8.1 Information. Pipeidentificationshallincludethe
SECTION 608 contents of the piping system and an arrow indicating the
PROTECTION OF POTABLE WATER SUPPLY directionofflow.Hazardouspipingsystemsshallalsocon-
taininformation addressing thenature of thehazard. Pipe
608.1 General. A potable water supply system shall be
identificationshallberepeatedatmaximumintervalsof25
designed, installedandmaintainedinsuchamanner soasto
feet(7620mm)andateachpointwherethepipingpasses
preventcontaminationfromnonpotableliquids,solidsorgases
through a wall, floor or roof. Lettering shall be readily
being introduced into the potable water supply through
observable within the room or space where the piping is
cross-connectionsoranyotherpipingconnectionstothesys-
located.
tem. Backflow preventer applications shall conform to Table
608.1,exceptasspecificallystatedinSections608.2through 608.8.2Color.Thecolorofthepipeidentificationshallbe
608.16.10. discernable and consistent throughout the building.
608.2 Plumbing fixtures. The supply lines and fittings for 608.8.3Size.Thesizeofthebackgroundcolorfieldandlet-
every plumbing fixture shall be installed so as to prevent tering shall comply with Table 608.8.3.
backflow. Plumbing fixture fittings shall provide backflow
protection in accordance with ASME A112.18.1.
TABLE 608.8.3
SIZE OF PIPE IDENTIFICATION
608.3 Devices, appurtenances, appliances and apparatus.
Alldevices,appurtenances,appliancesandapparatusintended LENGTH BACKGROUND SIZE OF
to serve some special function, such as sterilization, distilla- PIPE DIAMETER COLOR FIELD LETTERS
(inches) (inches) (inches)
tion, processing, cooling, or storage of iceor foods, and that
3/ to 11/ 8 0.5
connecttothewatersupplysystem,shallbeprovidedwithpro- 4 4
tectionagainstbackflowandcontaminationofthewatersupply 11/ to 2 8 0.75
2
system. Water pumps, filters, softeners, tanks and all other
21/ to 6 12 1.25
appliancesanddevicesthathandleortreatpotablewatershall 2
be protected against contamination. 8 to 10 24 2.5
over 10 32 3.5
608.3.1Specialequipment,watersupplyprotection.The
watersupplyforhospitalfixturesshallbeprotectedagainst For SI: 1 inch = 25.4 mm.
44 ARKANSAS PLUMBING CODE
WATER SUPPLY AND DISTRIBUTION
TABLE 608.1
APPLICATION OFBACKFLOWPREVENTERS
DEVICE DEGREE OFHAZARDa APPLICATIONb APPLICABLE STANDARDS
Air gap High or low hazard Backsiphonageorbackpressure ASME A112.1.2
Air gap fittings for use with plumbing
High or low hazard Backsiphonageorbackpressure ASME A112.1.3
fixtures, appliances and appurtenances
Antisiphon-typefill valves for gravity
High hazard Backsiphonageonly ASSE1002,CSAB125
water closet flush tanks
Backflowpreventerfor carbonated Backpressureorbacksiphonage
Low hazard ASSE1022,CSAB64.3.1
beverage machines Sizes1/ ″-3/ ″
4 8
Backflowpreventerwith intermediate Backpressureorbacksiphonage
Low hazard ASSE1012,CSAB64.3
atmospheric vents Sizes1/ ″-3/ ″
4 4
Barometric loop High or low hazard Backsiphonageonly (See Section 608.13.4)
Double checkbackflowprevention
Backpressureorbacksiphonage ASSE1015,AWWAC510,
assembly and double check fire Low hazard Sizes3/ ″- 16″ CSAB64.5,CSAB64.5.1
protectionbackflowprevention assembly 8
Backpressureorbacksiphonage
Double check detector fire protection
Low hazard (Fire sprinkler systems) ASSE1048
backflowprevention assemblies
Sizes 2″- 16″
Backpressureorbacksiphonage
Dual-check-valve-typebackflowpreventer Low hazard ASSE1024,CSAB64.6
Sizes1/ ″- 1″
4
Low headbackpressure, rated
working pressure,backpressureor
Hose connectionbackflowpreventer High or low hazard ASSE1052,CSAB64.2.1.1
backsiphonage
Sizes1/ ″-1″
2
Low headbackpressureor
ASSE1011,CSAB64.2,
Hose connection vacuum breaker High or low hazard backsiphonage
CSAB64.2.1
Sizes1/ ″,3/ ″, 1″
2 4
Low headbackpressureand
Laboratory faucetbackflowpreventer High or low hazard ASSE1035,CSAB64.7
backsiphonage
Pipe-applied atmospheric-type vacuum Backsiphonageonly
High or low hazard ASSE1001,CSAB64.1.1
breaker Sizes1/ ″- 4″
4
Backsiphonageonly
Pressure vacuum breaker assembly High or low hazard ASSE1020,CSAB64.1.2
Sizes1/ ″- 2″
2
Reduced pressure principlebackflow
Backpressureorbacksiphonage ASSE1013,AWWAC511,
preventerand reduced pressure principle High or low hazard Sizes3/ ″- 16″ CSAB64.4,CSAB64.4.1
fire protectionbackflowpreventer 8
Reduced pressure detector fire protection Backsiphonageorbackpressure
High or low hazard ASSE1047
backflowpreventionassemblies (Fire sprinkler systems)
Backsiphonageonly
Spillproofvacuum breaker High or low hazard ASSE1056
Sizes1/ ″-2″
4
Low headbackpressureor
Vacuum breaker wall hydrants,
High or low hazard backsiphonage ASSE1019,CSAB64.2.2
frost-resistant, automatic draining type
Sizes3/ ″, 1″
4
For SI: 1 inch = 25.4 mm.
a. Low hazard–See Pollution (Section 202).
High hazard–See Contamination (Section 202).
b. SeeBackpressure(Section 202).
SeeBackpressure, low head (Section 202).
SeeBacksiphonage(Section 202).
ARKANSAS PLUMBING CODE 45
WATER SUPPLY AND DISTRIBUTION
608.9Reutilizationprohibited.Waterutilizedforthecooling tionvacuumbreakersshallconformtoASSE1011,ASSE
of equipment or other processes shall not be returned to the 1019, ASSE 1035, ASSE 1052, CAN/CSA-B64.2,
potable water system. Such water shall be discharged into a CAN/CSA- B64.2.2 or CSA B64.7. These devices shall
drainagesystemthroughanairgaporshallbeutilizedfornon- operateundernormalatmosphericpressurewhenthecriti-
potable purposes. cal level is installed at the required height.
608.10Reuseofpiping.Pipingthathasbeenutilizedforany 608.13.7 Doublecheck-valveassemblies.Double check-
purpose other than conveying potable water shall not be uti- valve assemblies shall conform to ASSE 1015 or AWWA
lized for conveying potable water. C510. Double-detector check-valve assemblies shall con-
formtoASSE1048.Thesedevicesshallbecapableofoper-
608.11Paintingofwatertanks.Theinteriorsurfaceofapota-
ating under continuous pressure conditions.
blewatertankshallnotbelined,paintedorrepairedwithany
materialthatchangesthetaste,odor,colororpotabilityofthe 608.13.8Spillproofvacuumbreakers.Spillproofvacuum
watersupplywhenthetankisplacedin,orreturnedto,service. breakers(SVB)shallconformtoASSE1056.Thesedevices
are designed for installation under continuous-pressure
608.12Pumpsandotherappliances.Waterpumps,filters,
conditionswhenthecriticallevelisinstalledattherequired
softeners,tanksandallotherdevicesthathandleortreatpota-
height.
blewatershallbeprotectedagainstcontamination.
608.13.9 Chemical dispenser backflow devices.
608.13 Backflow protection. Means of protection against
Backflow devices for chemical dispensers shall comply
backflow shall be provided in accordance with Sections
withASSE1055orshallbeequippedwithanairgapfitting.
608.13.1through608.13.9.
608.14Locationofbackflowpreventers.Accessshallbepro-
608.13.1Airgap.Theminimumrequiredairgapshallbe
vided to backflow preventers as specified by the installation
measuredverticallyfromthelowestendofapotablewater
instructions of the approved manufacturer.
outlettothefloodlevelrimofthefixtureorreceptacleinto
whichsuchpotablewateroutletdischarges.Airgapsshall 608.14.1 Outdoor enclosures for backflow prevention
comply with ASME A112.1.2 and air gap fittings shall devices. Outdoor enclosures for backflow prevention
complywithASMEA112.1.3. devices shall comply withASSE1060.
608.13.2 Reduced pressure principle backflow 608.15Protectionofpotablewateroutlets.Allpotablewater
openings and outlets shall be protected against backflow in
preventers. Reduced pressure principle backflow
accordance with Section 608.15.1, 608.15.2, 608.15.3,
preventersshallconformtoASSE1013,AWWAC511or
608.15.4, 608.15.4.1, 608.15.4.2 or 608.15.4.3.
CAN/CSA-B64.3. Reduced pressure detector assembly
backflowpreventersshallconformtoASSE1047.These 608.15.1Protectionbyairgap.Openingsandoutletsshall
devicesshallbepermittedtobeinstalledwheresubjectto beprotectedbyanairgapbetweentheopeningandthefix-
continuous pressure conditions. The relief opening shall turefloodlevelrimasspecifiedinTable608.15.1.Openings
discharge by air gap and shall be prevented from being andoutletsequippedforhoseconnectionshallbeprotected
submerged. by means other than an air gap.
608.13.3 Backflow preventer with intermediate atmo- 608.15.2 Protection by a reduced pressure principle
spheric vent. Backflow preventers with intermediate backflow preventer. Openings and outlets shall be pro-
atmosphericventsshallconformtoASSE1012orCAN/ tected by a reduced pressure principlebackflowpreventer.
CSA-B64.3.Thesedevicesshallbepermittedtobeinstalled
608.15.3Protectionbyabackflowpreventerwithinter-
wheresubjecttocontinuouspressureconditions.Therelief
mediateatmosphericvent.Openingsandoutletsshallbe
opening shall discharge by air gap and shall be prevented
protected by a backflow preventer with an intermediate
frombeingsubmerged.
atmospheric vent.
608.13.4Barometricloop.Barometricloopsshallprecede
608.15.4Protectionbyavacuumbreaker.Openingsand
the point of connection and shall extend vertically to a
outlets shall be protected by atmospheric-type or pres-
heightof35feet(10668mm).Abarometricloopshallonly
sure-typevacuumbreakers.Thecriticallevelofthevacuum
beutilizedasanatmospheric-typeorpressure-typevacuum
breakershallbesetaminimumof6inches(152mm)above
breaker.
thefloodlevelrimofthefixtureordevice.Fillvalvesshall
608.13.5 Pressure-type vacuumbreakers.Pressure-type besetinaccordancewithSection425.3.1.Vacuumbreakers
vacuum breakers shall conform to ASSE 1020 and shallnotbeinstalledunderexhausthoodsorsimilarloca-
spillproofvacuumbreakersshallcomplywithASSE1056. tionsthatwillcontaintoxicfumesorvapors.Pipe-applied
Thesedevicesaredesignedforinstallationundercontinu- vacuum breakers shall be installed not less than 6 inches
ouspressureconditionswhenthecriticallevelisinstalledat (152mm)abovethefloodlevelrimofthefixture,receptor
the required height. Pressure-type vacuum breakers shall or device served.
not be installed in locations where spillage could cause
608.15.4.1Deck-mountedandintegralvacuumbreak-
damage to the structure.
ers. Approved deck-mounted or equipment-mounted
608.13.6 Atmospheric-type vacuum breakers. vacuumbreakersandfaucetswithintegralatmospheric
Pipe-appliedatmospheric-typevacuumbreakersshallcon- orspillproofvacuumbreakersshallbeinstalledinaccor-
formtoASSE1001orCAN/CSA-B64.1.1.Hose-connec- dance with the manufacturer’s instructions and the
46 ARKANSAS PLUMBING CODE
WATER SUPPLY AND DISTRIBUTION
TABLE 608.15.1
MINIMUM REQUIRED AIR GAPS
MINIMUM AIR GAP
FIXTURE Away from awalla(inches) Close to a wall (inches)
Lavatories and other fixtures with effective opening not greater than1/ inch
2 1 11/
in diameter 2
Sink, laundry trays, gooseneck back faucets and other fixtures witheffective
1.5 2.5
openings not greater than3/ inch in diameter
4
Over-rim bath fillers and other fixtures with effective openings notgreater
2 3
than 1 inch in diameter
Drinking water fountains, single orifice not greater than7/ inch indiameter
16
or multiple orifices with a total area of 0.150 square inch(area of circle7/ 1 11/
16 2
inch in diameter)
Two times the diameter Three times the diameter
Effective openings greater than 1 inch
of the effective opening of the effective opening
For SI: 1 inch = 25.4 mm.
a. Applicablewherewallsorobstructionsarespacedfromthenearestinside-edgeofthespoutopeningadistancegreaterthanthreetimesthediameteroftheeffective
opening for a single wall, or a distance greater than four times the diameter of the effective opening for two intersecting walls.
requirementsforlabelingwiththecriticallevelnotless potablewaterbydouble-wallconstruction.Anairgapopen
than 1 inch (25 mm) above the flood level rim. totheatmosphereshallbeprovidedbetweenthetwowalls.
Heat exchangers utilizing an essentially nontoxic transfer
608.15.4.2 Hose connections. Sillcocks, hose bibbs,
fluid shall be permitted to be of single-wall construction.
wallhydrantsandotheropeningswithahoseconnection
shall be protected by an atmospheric-type or pres- 608.16.4Additivesornonpotablesource.Wheresystems
sure-type vacuum breaker or a permanently attached under continuous pressure contain chemical additives or
hose connection vacuum breaker. antifreeze,orwheresystemsareconnectedtoanonpotable
secondary watersupply,thepotablewatersupply shallbe
Exceptions:
protectedagainstbackflowbyareducedpressureprinciple
1. Thissectionshallnotapplytowaterheaterand
backflowpreventer.Wherechemicaladditivesorantifreeze
boilerdrainvalvesthatareprovidedwithhose
areaddedtoonlyaportionofanautomaticfiresprinkleror
connection threads and that are intended only
standpipesystem,thereducedpressureprinciplebackflow
for tank or vessel draining.
preventershallbepermittedtobelocatedsoastoisolatethat
2. This section shall not apply to water supply portionofthesystem.Wheresystemsarenotundercontinu-
valvesintendedforconnectionofclotheswash- ous pressure, the potable water supply shall be protected
ing machines where backflow prevention is againstbackflowbyanairgaporapipeappliedatmospheric
otherwise provided or is integral with the vacuum breaker conforming to ASSE 1001or CAN/CSA
machine. B64.1.1.
608.16 Connections to the potable water system. Connec- 608.16.5 Connections to lawn irrigation systems. The
tions to the potable water system shall conform to Sections potablewatersupplytolawnirrigationsystemsshallbepro-
608.16.1 through 608.16.9. tected against backflow by an atmospheric-type vacuum
breaker,apressure-typevacuumbreakerorareducedpres-
608.16.1Beveragedispensers.Thewatersupplyconnec-
sure principle backflow preventer. A valve shall not be
tion to carbonated beverage dispensers shall be protected
installeddownstreamfromanatmosphericvacuumbreaker.
against backflow by a backflow preventer conforming to
Wherechemicalsareintroducedintothesystem,thepotable
ASSE1022orbyanairgap.Thebackflowpreventerdevice
water supply shall be protected against backflow by a
andthepipingdownstreamtherefromshallnotbeaffected
reduced pressure principlebackflowpreventer.
by carbon dioxide gas.
608.16.2Connectionstoboilers.Thepotablesupplytothe 608.16.6Connectionssubjecttobackpressure.Wherea
boilershallbeequippedwithabackflowpreventerwithan potablewaterconnectionismadetoanonpotableline,fix-
intermediateatmosphericventcomplyingwithASSE1012 ture, tank, vat, pump or other equipment subject to
or CAN/CSA B64.3. Where conditioning chemicals are back-pressure, the potable water connection shall be pro-
introduced into the system, the potable water connection tected by a reduced pressure principlebackflowpreventer.
shallbeprotectedbyanairgaporareducedpressureprinci-
608.16.7 Chemical dispensers. Where chemicaldispens-
ple backflow preventer, complying with ASSE 1013,
ers connect to the potable water distribution system, the
CAN/CSAB64.4orAWWAC511.
watersupplysystemshallbeprotectedagainstbackflowin
608.16.3 Heat exchangers. Heat exchangers utilizing an accordance with Section 608.13.1, 608.13.2, 608.13.5,
essentiallytoxic transfer fluid shall be separated from the 608.13.6, 608.13.8 or 608.13.9.
ARKANSAS PLUMBING CODE 47
WATER SUPPLY AND DISTRIBUTION
608.16.8Portablecleaningequipment.Wheretheporta- 3. Followingtherequiredstandingtime,thesystemshallbe
ble cleaning equipment connects to the water distribution flushed with clean potable water until the chlorine is
system,thewatersupplysystemshallbeprotectedagainst purged from the system.
backflow in accordance with Section 608.13.1, 608.13.2,
4. Theprocedureshallberepeatedwhereshownbyabacte-
608.13.3, 608.13.7 or 608.13.8.
riologicalexaminationthatcontaminationremainspres-
608.16.9Dentalpumpequipment.Wheredentalpumping ent in the system.
equipment connects to the water distribution system, the
watersupplysystemshallbeprotectedagainstbackflowin
accordance with Section 608.13.1, 608.13.2, 608.13.5, SECTION 611
608.13.6 or 608.13.8. DRINKING WATER TREATMENT UNITS
608.16.10 Coffee machines and noncarbonated bever- 611.1 Design. Drinking water treatment units shall meet the
age dispensers. The water supply connection to coffee requirements of NSF 42, NSF 44, NSF 53 or NSF 62.
machinesandnoncarbonatedbeveragedispensersshallbe 611.2Reverseosmosissystems.Thedischargefromareverse
protected against backflow by a backflow preventer con- osmosisdrinkingwatertreatmentunitshallenterthedrainage
forming toASSE1022 or by an air gap. systemthroughanairgaporanairgapdevicethatmeetsthe
requirements of NSF 58.
608.17Protectionofindividualwatersupplies.Anindivid-
ualwatersupply shallbelocatedand constructed soastobe 611.3 Connection tubing. The tubing to and from drinking
safeguarded against contamination in accordance with the watertreatmentunitsshallbeofasizeandmaterialasrecom-
ArkansasWaterWellConstructionCommission,theArkansas mended by the manufacturer. The tubing shall comply with
DepartmentofHealthDivisionofEngineeringandtheArkan- NSF 14, NSF 42, NSF 44, NSF 53, NSF 58 or NSF 61.
sas Department of Health Environmental Health Protection
program.
SECTION 612
SOLAR SYSTEMS
SECTION 609
612.1Solarsystems.Theconstruction,installation,alterations
HEALTH CARE PLUMBING
and repair of systems, equipment and appliances intended to
609.1Scope.Thissectionshallgovernthoseaspectsofhealth utilizesolarenergyforspaceheatingorcooling,domestichot
care plumbing systems that differ from plumbing systems in waterheating,swimmingpoolheatingorprocessheatingshall
otherstructures.Healthcareplumbingsystemsshallconform beinaccordancewiththiscode,theArkansasGasCodeand
tothiscodetheArkansasMechanicalCodeandtheRulesand the Arkansas Mechanical Code.
Regulations to health care facilities licensed under Act-414,
1961,asamended,andadministeredbytheArkansasDepart-
ment of Health, Division of Health Care Facilities. SECTION 613
TEMPERATURE CONTROL
DEVICES AND VALVES
SECTION 610 613.1 Temperature-actuated mixing valves. Temperature-
DISINFECTION OF POTABLE WATER SYSTEM actuated mixing valves, which are installed to reduce water
temperaturestodefinedlimits,shallcomplywithASSE1017.
610.1General.Neworrepairedpotablewatersystemsshallbe
purgedofdeleteriousmatteranddisinfectedpriortoutilization.
Themethodtobefollowedshallbethatprescribedbythehealth
SECTION 614
authorityorwaterpurveyorhavingjurisdictionor,intheabsence
TESTING AND REPAIR
of a prescribed method, the procedure described in either
AWWAC651orAWWAC652,orasdescribedinthissection. 614.1BackflowAssemblyTestingandRepairPrograms.It
Thisrequirementshallapplyto“on-site”or“in-plant”fabrica- is required that all backflow programs that certify backflow
tionofasystemortoamodularportionofasystem. tester technicians and repair technicians have their teaching
instructorsre-certifyevery5yearsfortestingandrepair.Itis
1. The pipe system shall be flushed with clean, potable
theresponsibilityofthetestingprogramtoprovidedocumenta-
water untildirty water does not appear atthe points of
tionofproofofre-certificationfortheirprograminstructorsto
outlet.
the Arkansas Department of Health and Human Services
2. The system or part thereof shall be filled with a plumbing and natural gas program.
water/chlorine solution containing at least 50 parts per
a) ATestingTechnicianorRepairTechnicianisanyperson
million (50 mg/L) of chlorine, and the system or part
meeting all applicable licensing and/or certification
thereof shallbe valved off and allowed tostand for 24
requirementsoftheStateAdministrativeAuthority.
hours;orthesystemorpartthereofshallbefilledwitha
water/chlorinesolutioncontainingatleast200partsper b) Testing of backflow and backpressure devices shallbe
million(200mg/L)ofchlorineandallowedtostandfor3 donebyaTestingTechnicianwhowillberesponsiblefor
hours. the competence and accuracy of all test reports.
48 ARKANSAS PLUMBING CODE
WATER SUPPLY AND DISTRIBUTION
c) A Testing Technician shall perform all tests of the
mechanical devices/assemblies and be responsible for
the competence and accuracy of all test and reports.
d) The Testing Technician shall be equipped with and be
competent to use all necessary tools, and other equip-
ment necessary to test properly backflow prevention
assembliestodeterminethattheassembliesarefunction-
ing properly.
e) Testing and/or Repair Technician certification shall be
currentinaccordancewiththeeducationaland/ortrain-
ingrequirementsoftheStateAdministrativeAuthority.
The testing equipment being used is acceptable to the
StateAdministrativeAuthority,andisinproperoperat-
ing condition and calibration. The Certified Testing
Technicianshallbeequippedwith,andbecompetentto
use, all necessary tools, gauges, and other equipment
necessary to test properly backflow prevention assem-
bliestodetermineiftheassembliesarefunctioningprop-
erly.
f) ARepairTechnicianshallberesponsibleforallrepairs
performed on an assembly. An Arkansas Plumbers
license shall be required in addition to the Assembly
Repair Training when repairing backflow prevention
assemblies within the scope of the plumbing system.
Exception: An additional Arkansas Plumbers
LicenseisnotrequirediftheRepairTechnicianholds
a repair certificate of competency from the Depart-
ment of Health Plumbing and Natural Gas Program
for Repair Technician.
Other professionally licensed technicians may be
authorizedtorepairbackflowassemblieswithintheir
specialjurisdictionifproperlycertifiedanditisdeter-
minedtobenecessarytomeettheintentofthiscodeby
theadministrativeauthority.Example:Aprofessional
fire sprinkler installer who meets all requirements
except a plumbing license may be certified to repair
assembliesonfiresprinklersystemsonly.
g) Cross-connection control survey standards shall be
administeredinaccordancewiththeminimumrequire-
ments set forth by the Cross Connection Survey Pro-
gram.
ARKANSAS PLUMBING CODE 48.1