Got a call a little bit ago from a restaurant owner asking if I clean grease traps. Sounds like the above ground box that separates the grease. I've watched someone clean one a couple times, and smelled them being cleaned many times. But never done it personally. Guy I watched used a slotted spoon to carefully scoop the solidified grease from the surface of the water. Whats the best way to clean these things out and what should I charge? Not sure I really want to deal with it if I've got to ladle the crap out.