How to Size a Grease Interceptor – Simple Guide for MEP Engineers

Sizing a grease interceptor-or grease trap-is something every plumbing or MEP engineer is sooner or later faced with. Grease interceptors must be installed on restaurants, cafeterias, commercial kitchens, and food-processing areas that drain fats, oils, and grease into a drainage system. An interceptor that is too small overflows, while an interceptor that is too large becomes very expensive to purchase and clean.

Because of that, understanding grease trap sizing is extremely important.