All restaurants, food manufacturers, hotels, cafes, casinos, and all other food servicing establishments that have commercial kitchens or handing food are required to have their grease traps and grease interceptors maintained by a licensed hauler. Cleaning a grease trap or grease interceptor will require specialty tools, equipment, and a proper source of disposal. Neglected grease traps will cause major plumbing problems that can lead to hazardous overflow or drain clogs.