25kg Water Hardener
Water Hardener (Calcium chloride) for swimming pools is a chemical compound used to maintain healthy water. Water can be ‘hard’ or ‘soft’ depending on the dissolved mineral content. If the calcium hardness level is too low, this can cause etching of plaster and metal corrosion. If the calcium hardness level is too high, this can cause scale formation, marble discolouration, and cloudy water.