Commercial Grease Traps 9 LBS Capacity & 5 Gallon per Minute.How Does it Work Fractional filtration is adopted for a better oil-water separation effect. The filter basket will stop the solid waste first, and then the rest grease will flow through the oil filtering area. Finally, the filtered water will discharge from the drainage outlet. The basic function of a grease trap is to prevent fats, oils, and solids reach the drain of the kitchen and the municipal sewer system. Fats, oils, and solids can cause drain blockage causing backflow thus creating serious pollution problems. Just connect the pipe run from the sinks and dishwasher to the Grease Trap inlet. Then pipe the Grease Trap outlet directly to the drain. We recommend solvent weld pipe is used for a secure fit. Also, make sure the trap is on the flat floor. The sink not only has a modern and sleek look, but also functional and practical. Ideal for restaurant, food truck, patio bar, garage, laundry room, shop, utility room, etc