ecoONE JetONE Fast Acting PIPE Cleanser for Whirlpools and Spas. PIPE Cleanser utilizes a proprietary blend of alkaline cleansing agents and non-foaming surfactants to penetrate deep inside your whirlpool or spa’s plumbing and equipment to scrub away biofilm and organic, mineral and chemical contaminants. PIPE Cleanser even helps to ‘restart’ rotating jets by eliminating contaminants that clog them. PIPE Cleanser will not cause excessive foaming. An excellent companion product to the ecoONE spa treatment line. Hot Tub/Spa Instructions: Remove cartridge filter. Add 1/2 bottle (4 oz. / 113g) of PIPE Cleanser to existing water. Run jets on full for one hour. Drain and thoroughly rinse spa. Repeat before every drain and refill. (For first use or heavily contaminated spas use entire bottle and allow to work for up to 24 hours.) Whirlpool Bath Instructions: Fill whirlpool at least 2 inches above suction intake with hot water. Add 4 caps full of PIPE Cleanser. Circulate on high for 5 to 30 minutes and drain. Refill tub with hot water, circulate jets and drain. Repeat monthly or as needed.