+22 How Does A Commercial Grease Trap Work References. Grease traps are the plumbing device that gets installed right outside your commercial eatery. A grease trap is in place to prevent fats, oils, and grease that go down the drains from entering into either the public sewer system or the septic tank.

How to prevent costly grease trap cleanup. Grease traps usually have tube fittings that enable the rest of the wastewater to flow through. I like the removable basket, and although.