The Ontario Building Code | Location and Cleanout for Building Traps
7.4.5.4. Location and Cleanout for building Traps
(1) Where a building trapis installed, it shall,
(a) be provided with a cleanout fitting on the upstream side of and directly over the trap,
(b) be located upstream of the building cleanout, and
(c) be located,
(i) inside the building as close as practical to the place where the building drain leaves the building, or
(ii) outside the building in a manhole.
In Plain Language
Where a building trap is installed, this article sets out where it must be located and how a cleanout must be provided nearby, so the trap can be accessed and cleared if it becomes blocked.
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.