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.