The Ontario Building Code | Location of Soil or Waste Pipes
7.4.6.2. Location of soil or Waste pipes
(1) A soil or waste pipe shall not be located directly above,
(a) non-pressure potablewater storage tanks,
(b) manholes in pressure potable water storage tanks, or
(c) food-handling or processing equipment.
In Plain Language
A soil or waste pipe can't be located directly above certain spaces, such as non-combustible ceilings in specific occupancies, reducing the risk of leaks affecting those spaces below.
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.