The type and size of the grease removal system shall be based on the drainage fixture unit formula as defined in the currently adopted Uniform Plumbing Code.

In no case shall a hydromechanical grease interceptor smaller than 20 gallons per minute or larger than 55 gallons per minute be installed without approval of the director. In no case shall a gravity grease interceptor smaller than 750 gallons be installed without prior approval of the director. The maximum size for a gravity grease interceptor shall be 4,000 gallons. If the calculated minimum size is larger than this, two interceptors of approximately equal size shall be installed in series. If the calculated minimum size is larger than 8,000 gallons, two 4,000-gallon gravity grease interceptors shall be installed in series. (Ord. 3220 § 2, 2016; Ord. 2742 § 2, 2008. Formerly 14.60.3584)