7.1.

(1) The scope of this Part shall be as described in Subsection 1.1.2. 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) In this Part,

Storey means the interval between two successive floor levels including mezzanine floors that contain plumbing 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) Every sanitary drainage system 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.

(1) Every storm drainage system shall be connected to a public storm sewage works, a public combined sewage works or a designated storm water disposal location but shall not be connected to a sanitary sewage works.

(1) Except as provided in Sentence (2), every water distribution system shall be connected,

(a) to a watermain that is part of a municipal drinking-water system, or

(b) to a drinking-water system, if a watermain described in Clause (a) is not available.

(2) Storm sewage or greywater that is free of solids may be used for the flushing of water closets, urinals or the priming of traps.

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

(1) Piping in any building shall be connected to the public services separately from piping of any other building, except that an ancillary building on the same property may be served by the same service.

(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.

(1) Private sewers and private water supply pipes shall be installed according to MOE, “Guidelines for the Design of Sanitary Sewage Systems, Guidelines for the Design of Storm Sewer Systems, Guidelines for the Design of Water Distribution Systems and Guidelines for Servicing in Areas Subject to Adverse Conditions”.

(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 and 9.

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