Sep-14 14oz Clr Septic System Treatment CLR Septic System Treatment uses a state-of-the-art, industrial strength formula Patented process stabilizes the healthy bacteria necessary for optimal septic system function Breaks down stubborn organic waste, including detergents, soaps, oils, grease, and paper Formula contains no detergents or preservatives, and was created in partnership with the EPA Fast-acting formula is safe for use in all pipes, boats, and RVs