The Ontario Building Code | Application
8.4.1.2. application
(1) A Class 2 sewage system shall be designed only for the treatment and disposal of greywater.
(2) The total daily design flow for a Class 2 sewage system shall be calculated based on the fixturesdischarging to the system as follows:
(a) 200 L per fixture unit where there is a supply of pressurized water, and
(b) 125 L per fixture unit where there is no supply of pressurized water.
8.4.2. design and Construction Requirements
In Plain Language
This article sets out the conditions under which this Section's requirements apply, addressing when this particular sewage system approach may be used.
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.