R156-56-707. Statewide Amendments to the IPC.

The following are adopted as amendments to the IPC to be applicable statewide:

(1) In Section 202, the definition for "Backflow Backpressure, Low Head" is deleted in its entirety.

(2) In Section 202, the definition for "Backsiphonage" is deleted and replaced with the following:

Backsiphonage. The backflow of potentially contaminated, polluted or used water into the potable water system as a result of the pressure in the potable water system falling below atmospheric pressure of the plumbing fixtures, pools, tanks or vats connected to the potable water distribution piping.

(3) In Section 202, the following definition is added:

Certified Backflow Preventer Assembly Tester. A person who has shown competence to test Backflow prevention assemblies to the satisfaction of the authority having jurisdiction under Subsection 19-4-104(4), Utah Code Ann. (1953), as amended.

(4) In Section 202, the definition for "Cross Connection" is deleted and replaced with the following:

Cross Connection. Any physical connection or potential connection or arrangement between two otherwise separate piping systems, one of which contains potable water and the other either water of unknown or questionable safety or steam, gas or chemical, whereby there exists the possibility for flow from one system to the other, with the direction of flow depending on the pressure differential between the two systems (see "Backflow").

(5) In Section 202, the following definition is added:

Heat Exchanger (Potable Water). A device to transfer heat between two physically separated fluids (liquid or steam), one of which is potable water.

(6) In Section 202, the definition for "Potable Water" is deleted and replaced with the following:

Potable Water. Water free from impurities present in amounts sufficient to cause disease or harmful physiological effects and conforming to the Titles 19-4 and 19-5, Utah Code Ann. (1953), as amended and the regulations of the public health authority having jurisdiction.

(7) In Section 202, the following definition is added:

S-Trap. A trap having its weir installed above the inlet of the vent connection.

(8) In Section 202, the definition for "Water Heater" is deleted and replaced with the following:

Water Heater. A closed vessel in which water is heated by the combustion of fuels or electricity and is withdrawn for use external to the system at pressures not exceeding 160 psig (1100 kPa (gage)), including the apparatus by which heat is generated, and all controls and devices necessary to prevent water temperatures from exceeding 210 degrees Fahrenheit (99 degrees Celsius).

(9) Section 304.3 Meter Boxes is deleted.

(10) Section 305.5 is deleted and replaced with the following:

305.5 Pipes through or under footings or foundation walls. Any pipe that passes under or through a footing or through a foundation wall shall be protected against structural settlement.

(11) Section 305.8 is deleted and replaced with the following:

305.8 Protection against physical damage. In concealed locations where piping, other than cast-iron or galvanized steel, is installed through holes or notches in studs, joists, rafters or similar members less than 1 1/2 inches (38 mm) from the nearest edge of the member, the pipe shall be protected by shield plates. Protective shield plates shall be minimum of 1/16 inch-thick (1.6 mm) steel, shall cover the area of the pipe where the member is notched or bored, and shall be at least the thickness of the framing member penetrated.

(12) Section 305.10 is added as follows:

Section 305.10 Improper Connections. No drain, waste, or vent piping shall be drilled and tapped for the purpose of making connections.

(13) Section 311.1 is deleted.

(14) Section 312.9 is deleted in its entirety and replaced with the following:

312.9 Backflow assembly testing. The premise owner or his designee shall have backflow prevention assemblies operation tested at the time of installation, repair and relocation and at least on an annual basis thereafter, or more frequently as required by the authority having jurisdiction. Testing shall be performed by a Certified Backflow Preventer Assembly Tester. The assemblies that are subject to this paragraph are the Spill Resistant Vacuum Breaker, the Pressure Vacuum Breaker Assembly, the Double Check Backflow Prevention Assembly, the Double Check Detector Assembly Backflow Preventer, the Reduced Pressure Principle Backflow Preventer, and Reduced Pressure Detector Assembly.

(15) In Section 403.1 footnote e is added as follows:

FOOTNOTE: e. When provided, in public toilet facilities there shall be an equal number of diaper changing facilities in male toilet rooms and female toilet rooms.

(16) In Section 406.3, an exception is added as follows:

Exception: Gravity discharge clothes washers, when properly trapped and vented, shall be allowed to be directly connected to the drainage system or indirectly discharge into a properly sized catch basin, trench drain, or other approved indirect waste receptor installed for the purpose of receiving such waste.

(17) A new section 406.4 is added as follows:

406.4 Automatic clothes washer metal safe pans. Metal safe pans, when installed under automatic clothes washers, shall only be allowed to receive the unintended discharge from a leaking appliance, valve, supply hose, or overflowing waste water from the clothes washer standpipe. Clothes washer metal safe pans shall not be used as indirect waste receptors to receive the discharge of waste water from any other equipment, appliance, appurtenance, drain pipe, etc. Each safe pan shall be provided with an approved trap seal primer, conforming to ASSE 1018 or 1044 or a deep seal trap. The sides of the safe pan shall be no less than 1 1/2" high and shall be soldered at the joints to provide a water tight seal.

406.4.1 Safe pan outlet. The safe pan outlet shall be no less than 1 1/2" in diameter and shall be located in a visible and accessible location to facilitate cleaning and maintenance. The outlet shall be flush with the surface of the pan so as not to allow water retention within the pan.

(18) Section 412.1 is deleted and replaced with the following:

412.1 Approval. Floor drains shall be made of ABS, PVC, cast-iron, stainless steel, brass, or other approved materials that are listed for the use.

(19) Section 412.5 is added as follows:

412.5 Public toilet rooms. All public toilet rooms shall be equipped with at least one floor drain.

(20) Section 418.1 is deleted and replaced with the following:

418.1 Approval. Sinks shall conform to ANSI Z124.6, ASME A112.19.1M, ASME A112.19.2M, ASME A112.19.3M, ASME A112.19.4M, ASME A112.19.9M, CSA B45.1, CSA B45.2, CSA B45.3, CSA B45.4 or NSF 2.

(21) Section 504.6.2 is deleted and replaced with the following:

504.6.2 Material. Relief valve discharge piping shall be of those materials listed in Tables 605.4 and 605.5 and meet the requirements for Sections 605.4 and 605.5 or shall be tested, rated and approved for such use in accordance with ASME A112.4.1. Piping from safety pan drains shall meet the requirements of Section 804.1 and be constructed of those materials listed in Section 702.

(22) Section 504.7.2 is deleted and replaced with the following:

504.7.2 Pan drain termination. The pan drain shall extend full-size and terminate over a suitably located indirect waste receptor, floor drain or extend to the exterior of the building and terminate not less than 6 inches (152 mm) and not more than 24 inches (610 mm) above the adjacent ground surface. When permitted by the administrative authority, the pan drain may be directly connected to a soil stack, waste stack, or branch drain. The pan drain shall be individually trapped and vented as required in Section 907.1. The pan drain shall not be directly or indirectly connected to any vent. The trap shall be provided with a trap primer conforming to ASSE 1018 or ASSE 1044.

(23) A new section 504.7.3 is added as follows:

504.7.3 Pan Designation. A water heater pan shall be considered an emergency receptor designated to receive the discharge of water from the water heater only and shall not receive the discharge from any other fixtures, devises or equipment.

(24) Section 602.3 is deleted and replaced with the following:

602.3 Individual water supply. Where a potable public water supply is not available, individual sources of potable water supply shall be utilized provided that the source has been developed in accordance with Sections 73-3-1, 73-3-3, and 73-3-25, Utah Code Ann. (1953), as amended, as administered by the Department of Natural Resources, Division of Water Rights. In addition, the quality of the water shall be approved by the local health department having jurisdiction. The source shall supply sufficient quantity of water to comply with the requirements of this chapter.

(25) Sections 602.3.1, 602.3.2, 602.3.3, 602.3.4, 602.3.5 and 602.3.5.1 are deleted in their entirety.

(26) Section 604.4.1 is added as follows:

604.4.1 Metering faucets. Self closing or metering faucets shall provide a flow of water for at least 15 seconds without the need to reactivate the faucet.

(27) Section 606.5 is deleted and replaced with the following:

606.5 Water pressure booster systems. Water pressure booster systems shall be provided as required by Section 606.5.1 through 606.5.11.

(28) Section 606.5.11 is added as follows:

606.5.11 Prohibited installation. In no case shall a booster pump be allowed that will lower the pressure in the public main to less than 20 psi.

(29) In Section 608.1, the following sentence is added at the end of the paragraph:

Connection without an air gap between potable water piping and sewer-connected waste shall not exist under any condition.

(30) Table 608.1 is deleted and replaced with the following:

TABLE 608.1

General Methods of Protection

Assembly Degree Application Installation Criteria

(applicable of

standard) Hazard

Air Gap High or Backsiphonage See Table 608.15.1

(ASME A112.1.2) Low

Reduced High or Backpressure or a. The bottom of each

Pressure Low Backsiphonage RP assembly shall

Principle Backflow 1/2" - 16" be a minimum of 12

Preventer (AWWA inches above the

C511, USC-FCCCHR, ground or floor.

ASSE 1013 b. RP assemblies shall

CSA CNA/CSA-B64.4) NOT be installed in

and Reduced Pressure a pit.

Detector Assembly c. The relief valve on

(ASSE 1047, USC- each RP assembly

FCCCHR) shall not be

                                             directly connected

                                             to any waste

                                             disposal line,

                                             including sanitary

                                             sewer, storm drains,

                                             or vents.

                                          d. The assembly shall

                                             be installed in a

                                             horizontal position

                                             only unless listed

                                             or approved for

                                             vertical

                                             installation.

Double Check Low Backpressure or a. If installed in a

Backflow Backsiphonage pit, the DC assembly

Prevention 1/2" - 16" shall be installed

Assembly with a minimum of

(AWWA C510, 12 inches of

USC-FCCCHR, clearance between

ASSE 1015) all sides of the

Double Check vault including

Detector Assembly the floor and roof

Backflow Preventer or ceiling with

(ASSE 1048, adequate room for

USC-FCCCHR) testing and

                                             maintenance.

                                          b. Shall be installed

                                             in a horizontal

                                             position unless

                                             listed or approved

                                             for vertical

                                             installation.

Pressure High or Backsiphonage a. Shall not be

Vacuum Low 1/2" - 2" installed in an

Breaker area that could be

Assembly subjected to

(ASSE 1020, backpressure or

USC-FCCCHR) back drainage

                                             conditions.

                                          b. Shall be installed

                                             a minimum of 12

                                             inches above all

                                             downstream piping

                                             and the highest

                                             point of use.

                                          c. Shall not be

                                             installed below

                                             ground or in a

                                             vault or pit.

                                          d. Shall be installed

                                             in a vertical

                                             position only.

Spill High or Backsiphonage a. Shall not be

Resistant Low 1/4" - 2" installed in an

Vacuum area that could

Breaker be subjected to

(ASSE 1056, backpressure or

USC-FCCCHR) back drainage

                                             conditions.

                                          b. Shall be installed

                                             a minimum of 12

                                             inches above all

                                             downstream piping

                                             and the highest

                                             point of use.

                                          c. Shall not be

                                             installed below

                                             ground or in a

                                             vault or pit.

                                          d. Shall be installed

                                             in a vertical

                                             position only.

Atmospheric High or Backsiphonage a. Shall not be

Vacuum Low installed in an

Breaker area that could be

(ASSE 1001 subjected to

USC-FCCCHR, backpressure or back

CSA CAN/CSA-B64.1.1 drainage conditions.

                                          b. Shall not be

                                             installed where it

                                             may be subjected to

                                             continuous pressure

                                             for more than 12

                                             consecutive hours

                                             at any time.

                                          c. Shall be installed

                                             a minimum of six

                                             inches above all

                                             downstream piping

                                             and the highest

                                             point of use.

                                          d. Shall be installed

                                             on the discharge

                                             (downstream) side

                                             of any valves.

                                          e. The AVB shall be

                                             installed in a

                                             vertical position

                                             only.

General The assembly owner,

Installation when necessary,

Criteria shall provide

                                             devices or

                                             structures to

                                             facilitate testing,

                                             repair, and/or

                                             maintenance and to

                                             insure the safety

                                             of the backflow

                                             technician.

                                             Assemblies shall

                                             not be installed

                                             more than five feet

                                             off the floor unless

                                             a permanent platform

                                             is installed.

                                             The body of the

                                             assembly shall not

                                             be closer than 12

                                             inches to any wall,

                                             ceiling or

                                             incumbrance, and

                                             shall be accessible

                                             for testing, repair

                                             and/or maintenance.

                                             In cold climates,

                                             assemblies shall be

                                             protected from

                                             freezing by a means

                                             acceptable to the

                                             code official.

                                             Assemblies shall

                                             be maintained as

                                             an intact assembly.

(31) Table 608.1.1 is added as follows:

TABLE 608.1.1

Specialty Backflow Devices for low hazard use only

     Device Degree of Application Applicable

                     Hazard Standard

Antisiphon-type Low Backsiphonage ASSE 1002

Water Closet Flush CSA CAN/

Tank Ball Cock CSA-B125

Dual check valve Low Backsiphonage ASSE 1024

Backflow Preventer or Backpressure

                                   1/4" - 1"

Backflow Preventer Low Backsiphonage ASSE 1012

with Intermediate Residential or Backpressure CSA CAN/

Atmospheric Vent Boiler 1/4" - 3/4" CSA-B64.3

Dual check valve Low Backsiphonage ASSE 1022

type Backflow or Backpressure

Preventer for 1/4" - 3/8"

Carbonated Beverage

Dispensers/Post

Mix Type

Hose-connection Low Backsiphonage ASSE 1011

Vacuum Breaker 1/2", 3/4", 1" CSA CAN/

                                                   CSA-B64.2

Vacuum Breaker Low Backsiphonage ASSE 1019

Wall Hydrants, 3/4", 1" CSA CAN/

Frost-resistant, CSA-B64.2.2

Automatic Draining

Type

Laboratory Faucet Low Backsiphonage ASSE 1035

Backflow Preventer CSA CAN/

                                                   CSA-B64.7

Hose Connection Low Backsiphonage ASSE 1052

Backflow Preventer 1/2" - 1"

Installation Guidelines: The above specialty devices shall

be installed in accordance with their listing and the

manufacturer's instructions and the specific provisions of

this chapter.

(32) In Section 608.3.1, the following sentence is added at the end of the paragraph:

All piping and hoses shall be installed below the atmospheric vacuum breaker.

(33) Section 608.7 is deleted in its entirety.

(34) In Section 608.8, the following sentence is added at the end of the paragraph:

In addition each nonpotable water outlet shall be labeled with the words "CAUTION: UNSAFE WATER, DO NOT DRINK".

(35) In Section 608.11, the following sentence is added at the end of the paragraph:

The coating shall conform to NSF Standard 61 and application of the coating shall comply with the manufacturers instructions.

(36) Section 608.13.3 is deleted and replaced with the following:

608.13.3 Backflow preventer with intermediate atmospheric vent. Backflow preventers with intermediate atmospheric vents shall conform to ASSE 1012 or CAS CAN/CAS-B64.3. These devices shall be permitted to be installed on residential boilers only where subject to continuous pressure conditions. The relief opening shall discharge by air gap and shall be prevented from being submerged.

(37) Section 608.13.4 is deleted in its entirety.

(38) Section 608.13.9 is deleted in its entirety.

(39) Section 608.15.3 is deleted and replaced with the following:

608.15.3 Protection by a backflow preventer with intermediate atmospheric vent. Opening and outlets to residential boilers only shall be protected by a backflow preventer with an intermediate atmospheric vent.

(40) Section 608.15.4 is deleted and replaced with the following:

608.15.4 Protection by a vacuum breaker. Openings and outlets shall be protected by atmospheric-type or pressure-type vacuum breakers. The critical level of the atmospheric vacuum breaker shall be set a minimum of 6 inches (152 mm) above the flood level rim of the fixture or device. The critical level of the pressure vacuum breaker shall be set a minimum of 12 inches (304 mm) above the flood level rim of the fixture or device. Ball cocks shall be set in accordance with Section 425.3.1. Vacuum breakers shall not be installed under exhaust hoods or similar locations that will contain toxic fumes or vapors. Pipe-applied vacuum breakers shall be installed not less than 6 inches (152 mm) above the flood level rim of the fixture, receptor or device served. No valves shall be installed downstream of the atmospheric vacuum breaker.

(41) Section 608.15.4.2 is deleted and replaced with the following:

608.15.4.2 Hose connections. Sillcocks, hose bibbs, wall hydrants and other openings with a hose connection shall be protected by an atmospheric-type or pressure-type vacuum breaker or a permanently attached hose connection vacuum breaker. Add-on-type backflow prevention devices shall be non-removable. In climates where freezing temperatures occur, a listed self-draining frost proof hose bibb with an integral backflow preventer shall be used.

(42) In Section 608.16.2, the first sentence of the paragraph is deleted and replaced as follows:

608.16.2 Connections to boilers. The potable water supply to the residential boiler shall be equipped with a backflow preventer with an intermediate atmospheric vent complying with ASSE 1012 or CSA CAN/CSA B64.3.

(43) Section 608.16.3 is deleted and replaced with the following:

608.16.3 Heat exchangers. Heat exchangers shall be separated from potable water by double-wall construction. An air gap open to the atmosphere shall be provided between the two walls.

Exceptions:

1. Single wall heat exchangers shall be permitted when all of the following conditions are met:

a. It utilizes a heat transfer medium of potable water or contains only substances which are recognized as safe by the United States Food and Drug Administration (FDA);

b. The pressure of the heat transfer medium is maintained less than the normal minimum operating pressure of the potable water system; and

c. The equipment is permanently labeled to indicate only additives recognized as safe by the FDA shall be used.

2. Steam systems that comply with paragraph 1 above.

3. Approved listed electrical drinking water coolers.

(44) In Section 608.16.4.1, add the following exception:

Exception: All class 1 and 2 systems containing chemical additives consisting of strictly glycerine (C.P. or U.S.P. 96.5 percent grade) or propylene glycol shall be protected against backflow with a double check valve assembly. Such systems shall include written certification of the chemical additives at the time of original installation and service or maintenance.

(45) Section 608.16.7 is deleted and replaced with the following:

608.16.7 Chemical dispensers. Where chemical dispensers connect to the water distribution system, the water supply system shall be protected against backflow in accordance with Section 608.13.1, Section 608.13.2, Section 608.13.5, Section 608.13.6 or Section 608.13.8.

(46) Section 608.16.8 is deleted and replaced with the following:

608.16.8 Portable cleaning equipment. Where the portable cleaning equipment connects to the water distribution system, the water supply system shall be protected against backflow in accordance with Section 608.13.1, Section 608.13.2 or Section 608.13.8.

(47) Section 608.16.9 is deleted and replaced with the following:

608.16.9 Dental pump equipment or water syringe. Where dental pumping equipment or water syringes connects to the water distribution system, the water supply system shall be protected against backflow in accordance with Section 608.13.1, Section 608.13.2, Section 608.13.5, Section 608.13.6 or Section 608.13.8.

(48) Section 608.16.11 is added as follows:

608.16.11 Automatic and coin operated car washes. The water supply to an automatic or coin operated car wash shall be protected in accordance with Section 608.13.1 or Section 608.13.2.

(49) Section 608.17 is deleted in its entirety.

(50) Section 701.2 is deleted and replaced with the following:

701.2 Sewer required. Every building in which plumbing fixtures are installed and all premises having drainage piping shall be connected to a public sewer where the sewer is within 300 feet of the property line in accordance with Section 10-8-38, Utah Code Ann., (1953), as amended; or an approved private sewage disposal system in accordance with Rule R317-4, Utah Administrative Code, as administered by the Department of Environmental Quality, Division of Water Quality.

(51) Section 802.3.2 is deleted in its entirety and replaced with the following:

802.3.2 Open hub waste receptors. Waste receptors for clear water waste shall be permitted in the form of a hub or pipe extending not more than 1/2 inch above a water impervious floor and are not required to have a strainer.

(52) Section 904.1 is deleted and replaced with the following:

904.1 Roof extensions. All open vent pipes that extend through a roof shall be terminated at least 12 inches (304.8 mm) above the roof, except that where a roof is to be used for any purpose other than weather protection, the vent extension shall be run at least 7 feet (2134 mm) above the roof.

(53) In Section 904.6, the following sentence is added at the end of the paragraph:

Vents extending through the wall shall terminate not less than 12 inches from the wall with an elbow pointing downward.

(54) In Section 905.4, the following sentence is added at the end of the paragraph:

Horizontal dry vents below the flood level rim shall be permitted for floor drain and floor sink installations when installed in accordance with Sections 702.2, 905.2 and 905.3 and provided with a wall clean out.

(55) Section 1104.2 is deleted and replaced with the following:

1104.2 Combining storm and sanitary drainage prohibited. The combining of sanitary and storm drainage systems is prohibited.

(56) Section 1108 is deleted in its entirety.

(57) The Referenced Standard NFPA 99c-02 in Chapter 13 is deleted and replaced with NFPA 99c-05.

(58) The Referenced Standard NSF-2003e in Chapter 13 is amended to add Section 608.11 to the list of Referenced in code section number.

(59) In Chapter 13, Referenced Standards, the following referenced standard is added:

TABLE

USC- Foundation for Cross-Connection Table 608.1

FCCCHR Control and Hydraulic Research

9th University of Southern California

Edition Kaprielian Hall 300

Manual Los Angeles CA 90089-2531

of Cross

Connection

Control

(60) Appendix C of the IPC, Gray Water Recycling Systems as amended herein shall not be adopted by any local jurisdiction until such jurisdiction has requested Appendix C as amended to be adopted as a local amendment and such local amendment has been approved as a local amendment under these rules.

(61) In jurisdictions which have adopted Appendix C as amended as a local amendment as provided herein, Section 301.3 of the IPC is deleted and replaced with the following:

301.3 Connection to the drainage system. All plumbing fixtures, drains, appurtenances and appliances used to receive or discharge liquid wastes or sewage shall be directly connected to the drainage system of the building or premises, in accordance with the requirements of this Code. This section shall not be construed to prevent indirect waste systems provided for in Chapter 8.

Exception: Bathtubs, showers, lavatories, clothes washers and laundry sinks shall not be required to discharge to the sanitary drainage system where such fixtures discharge to a gray water recycling system meeting all the requirements as specified in Appendix C as amended by these rules.

(62) Appendix C is deleted and replaced with the following, to be effective only in jurisdictions which have adopted Appendix C as amended as a local amendment under these rules:

Appendix C, Gray Water Recycling Systems, C101 Gray Water Recycling Systems

C101.1 General, recycling gray water within a building. In R1, R2 and R4 occupancies and one- and two-family dwellings, gray water recycling systems are prohibited.

In commercial occupancies, recycled gray water shall only be utilized for the flushing of water closets and urinals that are located in the same building as the gray water recycling system, provided the following conditions are met:

1. Such systems comply with Sections C101.1 through C101.14 as amended by these rules.

2. The commercial establishment demonstrates that it has and will have qualified staff to oversee the gray water recycling systems. Qualified staff is defined as level 3 waste water treatment plan operator as specified by the Department of Environmental Quality.

3. Gray water recycling systems shall only receive non hazardous waste discharge of bathtubs, showers, lavatories, clothes washers and laundry sinks such as chemicals having a pH of 6.0 to 9.0, or non flammable or non combustible liquids, liquids without objectionable odors, non-highly pigmented liquids, or other liquids that will not interfere with the operation of the sewer treatment facilities.

C101.2 Permit required. A permit for any gray water recycling system shall not be issued until complete plans prepared by a licensed engineer, with appropriate data satisfactory to the Code Official, have been submitted and approved. No changes or connections shall be made to either the gray water recycling system or the potable water system within any site containing a gray water recycling system, without prior approved by the Code Official. A permit may also be required by the local health department to monitor compliance with this appendix for system operator standards and record keeping.

C101.3 Definition. The following term shall have the meaning shown herein.

GRAY WATER. Waste water discharged from lavatories, bathtubs, showers, clothes washers and laundry sinks.

C101.4 Installation. All drain, waste and vent piping associated with gray water recycling systems shall be installed in full compliance with this code.

C101.5 Gray Water Reservoir. Gray water shall be collected in an approved reservoir construction of durable, nonabsorbent and corrosion-resistant materials. The reservoir shall be a closed and gas-tight vessel. Gas tight access openings shall be provided to allow inspection and cleaning of the reservoir interior. The holding capacity of the reservoir shall be a minimum of twice the volume of water required to meet the daily flushing requirements of the fixtures supplied by the gray water, but not less than 50 gallons (189 L). The reservoir shall be sized to limit the retention time of gray water to 72 hours maximum.

C101.6 Filtration. Gray water entering the reservoir shall pass through an approved cartridge filter or other method approved by the Code Official.

C101.7 Disinfection. Gray water shall be disinfected by an approved method that employs one or more disinfectants such as chlorine, iodine or ozone. A minimum of 1 ppm free residual chlorine shall be maintained in the gray water recycling system reservoir. Such disinfectant shall be automatically dispensed. An alarm shall be provided to shut down the gray water recycling system if disinfectant levels are not maintained at the required levels.

C101.8 Makeup water. Potable water shall be supplied as a source of makeup water for the gray water recycling system. The potable water supply to any building with a gray water recycling system shall be protected against backflow by an RP backflow assembly installed in accordance with this code. There shall be full-open valve on the makeup water supply to the reservoir. The potable water supply to the gray water reservoir shall be protected by an air gap installed in accordance with this code.

C101.9 Overflow. The reservoir shall be equipped with an overflow pipe of the same diameter as the influent pipe for the gray water. The overflow shall be directly connected to the sanitary drainage system.

C101.10 Drain. A drain shall be located at the lowest point of the reservoir and shall be directly connected to the sanitary drainage system. The drain shall be the same diameter as the overflow pipe required by Section C101.9 and shall be provided with a full-open valve.

C101.11 Vent required. The reservoir shall be provided with a vent sized in accordance with Chapter 9 based on the size of the reservoir influent pipe.

C101.12 Coloring. The gray water shall be automatically dyed blue or green with a food grade vegetable dye before such water is supplied to the fixtures.

C101.13 Identification. All gray water distribution piping and reservoirs shall be identified as containing non-potable water. Gray water recycling system piping shall be permanently colored purple or continuously wrapped with purple-colored Mylar tape. The tape or permanently colored piping shall be imprinted in black, upper case letters with the words "CAUTION: GRAY WATER, DO NOT DRINK."

All equipment areas and rooms for gray water recycling system equipment shall have a sign posted in a conspicuous place with the following text: TO CONSERVE WATER, THIS BUILDING USES GRAY WATER TO FLUSH TOILETS AND URINALS, DO NOT CONNECT TO THE POTABLE WATER SYSTEM. The location of the signage shall be determined by the Code Official.

C101.14 Removal from service. All gray water recycling systems that are removed from service shall have all connections to the reservoir capped and routed back to the building sewer. All gray water distribution lines shall be replaced with new materials.

C201.1 Outside the building. Gray water reused outside the building shall comply with the requirements of the Department of Environmental Quality Rule R317.