|The Best Whirlpool And Air Bath Cleaner Plumb Clean has been developed to target unsanitary issues surrounding whirlpool bath recirculation plumbing and air channels for blower systems. Between uses of the whirlpool or air blower system, residual water is trapped in the plumbing containing body oils, exfoliated skin, hair and soap residue. The balanced blend of surfactants combines with metal brighteners to attack the soap scum, hard water scale, and the mold growing on it. The product is formulated to break the bond of these deposits from the internal surfaces of the bath's pipes and fittings. It does a good job cleaning the exposed surfaces, too. Hard water scale can build up quietly, and along with oily residues from soap, bath & body oils, emollients, sunscreens, and exfoliated skin cells become nutrients for a biological culture in the dark wet pipes when the system has lain dormant for several days. Bacteria and mold thrive in this kind of environment and need a no-nonsense cleaner to flush them out of their hideout. Plumb Clean will create an environment that is unfavorable for growth of organisms, mold and fungi. By removing their food and lodging surfaces, the microbiological elements have no place to form a home. Plumb Clean provides a simple & convenient cleaning solution. Just pour 2 oz. of Plumb Clean into dirty bathwater after bathing, operate the whirlpool or air blower system for 2 - 5 minutes, then drain the bathwater. This simple process keeps the system clean of all debris. Regular use of Plumb Clean keeps the recirculation system clean. Plumb Clean is safe to use in all bath materials including; cultured marble, acrylic, fiberglass, cast iron or ABS plastics. Plumb Clean does not harm the rubber seals or connections in the pump & plumbing system, unlike bleach. Plumb Clean is non-toxic and safe when used as directed.