Isolation, Containment and Grease Separators: Old Thinking is New Again
While the shift to large outside grease interceptors has been accepted as the proven means to protect sewer systems from clogs, the move away from interior grease separators servicing grease discharge points has led to severe interior drainage system clogs within America's restaurant and institutional kitchen facilities.
Grease separator usage originally was driven by plumbing code language seeking to protect the integrity of a facility's drainage system. However, since the late 1970s, grease separator installations have increasingly been driven by sewer district sizing requirements. In the span of 20 years, the industry has gone from passive grease traps servicing individual commercial kitchen stations to large in-ground grease interceptors receiving all kitchen flows and located between the facility and its sewer connection.