Major FOG sources: 90% of FOG discharged to the sewer system is from: *3 Compartment Pot wash sink *Floors *Pre‐rinse sink to dishwasher
If the FSE has a pre‐rinse sink to the dishwasher, then there will only be 1% to 2% of the total FOG discharged to the sewer coming from the dishwasher. Many cities have in their FOG Mgt. Policy to not have the dishwasher connected to the grease interceptor. This is due to high temperatures (130 to 180*F), soaps and surfactants that can allow FOG to pass through the interceptor.