We were having problems in our store, due to the Rotisserie program we have at numerous locations in the Bay Area and Central Valley. We were experiencing a lot of grease trap and drain line problems as a result of all the chicken we cook. Drain lines were backing up and overflowing. Once we began using the biological drain treatment (Drainbo® Natural Drain Cleaner) we have dramatically reduced our problems and our need for drain cleaning. I whole-heartedly recommend using the product to anyone experiencing similar problems.