What is the minimum grease retention capacity for installed grease traps and interceptors?

The minimum grease retention capacity for installed grease traps and interceptors is established to ensure effective management of grease and fats that might enter the wastewater system. A capacity of no less than 2 pounds for each gallon per minute (GPM) of flow ensures that grease traps can handle the expected load and prevent overflows or blockages in the plumbing system.

This guideline is fundamental because it accommodates both routine kitchen operations and peak flow scenarios found in commercial settings. If a grease trap is undersized, it may fail to capture sufficient grease, leading to increased risks of buildup in the sewer systems, which can cause severe plumbing issues and environmental problems.

By adhering to this minimum retention capacity, the traps can function optimally, effectively separating grease from wastewater and promoting better compliance with health and environmental regulations. Additionally, it helps in prolonging the maintenance intervals of the grease traps, as they will not need frequent servicing if appropriately sized according to the demands they face.