Process
The Juggler first pumps out the grease interceptor water layer between the settled solids layer (i.e., sludge) and floating fats, oils, and grease (FOG) layer (i.e., scum) and stores it in a separate chamber in the vacuum truck. This water layer is called the "supernatant." The Juggler then pumps out the sludge and scum. Once the grease interceptor is pumped clean, the supernatant is processed through the Juggler filtration system and returned to the grease interceptor. Reportedly, in most cases, approximately 60% to 80% of the original pumped grease interceptor volume is returned to the grease interceptor as filtered supernatant.