Polysheen is a concentrated and highly effective dual performance clarifier for superb clarity and water that sparkles. Polysheen can be used to restore water clarity in a problem spa or ideally used as a weekly treatment to maintain sparkling water and enhance your bathing experience. Use sparingly (up to 1-2 capfuls) per week to maintain clear and sparkling water in conjunction with keeping good sanitiser levels (3-6mg/l) and regular shocking using Spalite. Also ensure that filters are clean by regular hosing and intermittent soaking in Filterbrite.