The Ontario Building Code | Lead Waste Pipe and Fittings
7.2.7.8. Lead Waste pipe and Fittings
(1) Lead waste pipe and fittings shall not be used in a water system or for a building sewer.
(2) When there is a change in size of a lead closet bend, the change shall be in the vertical section of the bend or made in such a manner that there shall be no retention of liquid in the bend.
7.2.8. Corrosion Resistant Materials
In Plain Language
Lead waste pipe and fittings can't be used in a water system or for a building sewer, and where a size change occurs in existing lead waste piping, additional specific requirements apply, reflecting lead's phased-out status in modern plumbing.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.