General

(1)The scope of this Part shall be as described in Subsection 1.3.3. of Division A.

(1)Except as provided in Sentence (2), this Part applies to the design and construction of plumbing.

(2)This Part does not apply to industrial process systems unless the industrial process system is interconnected with the plumbing system, in which case the interconnection shall be so designed and installed so that the plumbing system is protected against contamination or malfunction that may be caused by the industrial system.

(1)Except as provided in Sentence (2), words that appear in italics are defined in Article 1.4.1.2. of Division A and in the Building Code Act, 1992.

(2)In this Part, Storey means the interval between two successive floor levels including mezzanine floors that contain plumbing fixtures or between a floor level and roof.

(1)Plumbing facilities shall be provided in accordance with Subsection 3.7.4. and Section 9.31.

(1)Where gravity drainage to a sanitary drainage system is possible, a floor drain shall be installed in a basement forming part of a dwelling unit.

(2)Where gravity drainage to a sanitary drainage system is not possible, the floor drain required by Sentence (1) may be connected to a storm drainage system, dry well or drainage ditch provided it is located where it can receive only clear water waste or storm sewage.

(3)A floor drain shall be provided in a public laundry room, garbage room, incinerator room, boiler or heating room that is not located within a dwelling unit.

(1)Except as provided in Section 7.7., sanitary drainage systems shall be connected to a public sanitary sewer, a public combined sewer or a private sewage disposal system.

(2)A combined building drain or a combined building sewer shall not be installed. (See Note A-7.1.2.1.(2))

(1)Except as provided in Section 7.7., storm drainage systems and private sewers conveying storm sewage shall be connected to a public storm sewer, a public combined sewer or a designated storm water disposal location.

(1)Except as provided in Section 7.7. and Sentences (2) and (3), water distribution systems shall be connected to a public water main, drinking water system or a potable private water supply system.

(2)Storm sewage or greywater that is free of solids and treated to conform to Article 7.7.4.1. is permitted to be used as a water supply for

• (a) water closets,
• (b) urinals,
• (c) sub-surface irrigation, or
• (d) the priming of traps.

(3)Rainwater that is free of solids and treated to conform to Article 7.7.4.1. is permitted to be used as a water supply for

• (a) clothes washers,
• (b) laundry trays,
• (c) mop sinks,
• (d) bedpan washers,
• (e) water closets,
• (f) urinals,
• (g) hose bibbs,
• (h) sub-surface irrigation, or
• (i) the priming of traps.

(4)Piping conveying the non-potable water described in Sentence (2) shall be installed in conformance with Section 7.7.

(1)Except as provided in Sentences (2) and (3), piping in any building connected to the public services shall be connected separately from piping of any other building, except that an ancillary building on the same property may be served by the same service. (See Note A-7.1.2.4.(1))

(2)No plumbing serving a dwelling unit shall be installed in or under another unit of the building unless the piping is located in a tunnel, pipe corridor, common basement or parking garage, so that the piping is accessible for servicing and maintenance throughout its length without encroachment on any private living space, but this Sentence does not prevent plumbing serving a unit located above another unit from being installed in or under the lower unit.

(3)Water service pipes or building sewers serving buildings located on the same property may connect into a private water supply or a private sewer conforming to Article 7.1.2.5.

(1)Private water supply pipes shall be designed and installed according to MOE PIBS 6881e, "Design Guidelines for Drinking-Water Systems".

(2)Private sewers shall be designed and installed according to MOE PIBS 6879, "Design Guidelines for Sewage Works".

(1)Plumbing fixtures shall not be installed in a room that is not lighted and ventilated in accordance with the appropriate requirements in Parts 3, 6 and 9.

(1)Every fixture, plumbing appliance, interceptor, cleanout, valve, device or piece of equipment shall be located so that it is readily accessible for use, cleaning and maintenance.

(1)Plumbing shall be designed and installed to accommodate the maximum relative structural movement provided for in the construction of the building.

(1)Plumbing systems in buildings constructed in accordance with Part 3 shall be designed and installed to accommodate the seismic forces addressed in Subsection 4.1.8. (See Note A-7.1.4.1.(1))