The Ontario Building Code | Building Drain Ends
7.4.6.6. building Drain Ends
(1) Where a building drain enters a building above the elevation of the bottom of the wall of a building, the building drainmay be deemed to terminate at the first point that the drainage pipe changes direction from the horizontal to the vertical.
7.4.7. Cleanouts
In Plain Language
Where a building drain enters above the elevation of the bottom of a wall, it may be installed following specific alternative requirements set out in this article rather than the standard approach.
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.