What is the difference between a grease trap and a grease interceptor?
Grease traps and grease interceptors are both plumbing devices for grease removal from industrial wastewater discharge streams. The grease trap is generally thought of as the smaller indoor device, usually less than 100 gallons of liquid holding capacity, and, until recently, typically installed below a sink. Grease traps are usually made of steel and often designed with just a single compartment. The grease interceptor is generally considered the large pre-cast concrete tank, typically with a liquid holding capacity anywhere from 250 to 5,000 gallons and designed with two separate compartments. For the purposes of this website, the term “grease trap” is used to describe both devices. In Dallas, a grease trap is required for any commercial or institutional food service operation.
