HTH Tablet Skimmer Tabs 9 lb

Traditional chlorine products contain cyanuric acid (CYA). When too much CYA builds up, it can cause overstabilization or chlorine lock, cloud your water and cause algae growth. The slow-dissolving cal hypo formula in HTH chlorine skimmer tabs provides a steady source of available chlorine without adding extra (CYA) for beautifully clear water. The patented HTH slow dissolving technology protects against chlorine loss in direct sunlight and a sparkle that lasts up to 1 week. For best results, use HTH 6-way test strips twice weekly to test and balance your swimming pool water and keep chlorine levels between 1 and 4 ppm. Make sure do not enter your pool until the free available chlorine residual is 1 to 4 ppm (parts per million) the skimmer basket is free of all other water treatment products before adding tabs.