Whirlaway is a whirlpool bath system cleaner and deodorizer formulated for the safe and efficient cleaning, deodorizing, and stain removal of internal bath circulation systems. When used regularly, Whirlaway eliminates odors and corrosion-causing sulfides and cleans internal piping of soap scum, mineral deposits, mold, mildew, algae, and bath and body oils that cause bacteria growth. Using a cleaner on your whirlpool tub at least once a month is recommended, to keep it clean and free of contamination.FEATURES:•WhirlAway can be safely used in all plumbing systems, will not harm or mar acrylic, fiberglass, ABS•WhirlAway does not contain any chlorine compounds or hypochlorite bleaches.•It solubilizes, emulsifies contaminates such as soap scum, bath oils, body oils, mold, mildew, etc•WhirlAway is environmentally safe, 100% biodegradable.•Available in 8 oz. and 32 oz. varietiesDIRECTIONS:Fill bath with hot water 1"-2" above the highest jets. Turn on the circulation pump and slowly pour 8 ounces of WhirlAway near the suction intake. Circulate solution for approximately 5 minutes. Turn off the pump and completely drain the tub. Refill the tub with cold water and circulate for 2-3 minutes. Drain the tub again. System is now clean, deodorized and ready to use.