The Ontario Building Code | Equipment Restrictions Upstream of Interceptors
7.4.3.3. Equipment Restrictions Upstream of Interceptors
(1) Except as provided in Sentence (2), equipment discharging waste with organic solids shall not be located upstream of an interceptor.
(2) If a food scrap interceptor has been installed upstream of the grease interceptor, equipment discharging waste with organic solids may discharge through a grease interceptor.
In Plain Language
Certain equipment can't be installed upstream of a grease or oil interceptor, since that equipment could interfere with the interceptor doing its job of trapping fats, oils, and grease before they reach the sewer.
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.