Calcium Chloride Mini Pellets – 94 – 97% Pure – Hardness Increaser and Ice Melt – 10 Lbs

Calcium Chloride Mini Pellets – 94 – 97% Pure – Hardness Increaser and Ice Melt – 10 Pounds: Calcium chloride is used to increase the hardness of water in swimming pool or spas. Increasing calcium concentration in water reduces the erosion of concrete swimming pool surfaces. 2.45 lbs to 20,000 gallons will raise the hardness by 10 parts per million (ppm). Calcium chloride is also used as a deicer for snow and ice.