What are the differences between automatic and passive units?
Automatic Grease Interceptors: Mechanized grease interceptors for discharges of fats, oils and grease generated predominately from washing and cleaning operations in restaurants and food preparation facilities–pot washing, pre-rinse stations, floor drains, trenches and ventilation hoods. Passive Grease Interceptors: Gravity-based grease interceptors for large quantities of fats, oils and grease (which might interfere with proper municipal wastewater treatment) generated and discharged by large commercial/institutional kitchens and food service facilities.