What is the minimum grease trap flow rate in pounds per gallon per minute?

The minimum grease trap flow rate established in various plumbing codes, including Massachusetts regulations, is typically set at 2 pounds per gallon per minute. This measurement is crucial as it assists in ensuring that the grease trap can adequately handle the load generated by the kitchen waste.

A flow rate of 2 pounds per gallon per minute provides a balance that allows the grease trap to effectively separate fats, oils, and grease from the wastewater before it enters the sewer system. This standard helps prevent clogs and backups in the plumbing system and is aimed at protecting municipal water treatment facilities from the harmful effects of excessive grease accumulation.

Understanding this standard is essential for anyone working in the plumbing field, as it guides the proper sizing and installation of grease traps in commercial kitchens and other settings that produce significant grease waste.