7.4.5.4.Location and Cleanout for Building Traps

(1)   Where a building trap is 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.

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.