Destroys bacteria, viruses and fungi in the water. It combats algae preventative or curative treatment. Renders the crystal clear water. Its action floculante improves filter fineness. It protects chlorine from the destructive action of UV rays to 1 guide for 20 to 25 m3 water every 7 to 10 days in the skimmer, provided that it does not contain no chlorine stabilized. Do not mix to the solid state a stable chlorine: Blue Label HTH (Trichloroisocyanuric Acid or sodium dichloroisocyanurate dihydraté) with a chlorine stabiliser: label Red Hth (Calcium Hypochlorite or lithium).
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