The Ontario Building Code | Mechanical Joints
7.3.2.6. Mechanical Joints
(1) Mechanical joints shall be made with compounded elastomeric couplings or rings held by stainless steel or cast iron clamps or contained within a compression connection or groove and shoulder type mechanical coupling.
In Plain Language
Mechanical joints must use compounded elastomeric couplings or rings secured by stainless steel or cast iron clamps, giving a reliable seal without soldering or solvent welding.
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.