Puri Tech Chemicals 25 lb Calcium Hardness Increaser 25 lb Alkalinity Increaser Kit for Swimming Pools Spas Balance Chemical Levels Keep Surfaces Water Clean

Puri Tech Chemicals 25 lb Calcium Hardness Increaser & 25 lb Alkalinity Increaser Kit for Swimming Pools & Spas Balance Chemical Levels Keep Surfaces & Water Clean

Raises calcium level in swimming pool water.Calcium Hardness level prevents foaming, equipment and surface erosion and scaling.Dosage:2,000 Gallons: 1.5 Lbs to increase hardness 50ppm, 3 Lbs/100ppm, 6.25 Lbs/200ppm5,000 Gallons: 3 Lbs to increase hardness 50ppm, 6.25 Lbs/100ppm, 12.5 Lbs/200ppm10,000 Gallons: 6.25 Lbs to increase hardness 50ppm, 12.5 Lbs/100ppm, 25 Lbs/200ppm20,000 Gallons: 10.5 Lbs to increase hardness 50ppm, 25 Lbs/100ppm, 50 Lbs/200ppmActive Ingredients:Calcium ChlorideRaises total alkalinity in swimming pool water. Total alkalinity balance is a crucial component of water balance. Low alkalinity level can cause pH levels to fluctuate. High alkalinity levels can cause the water to cloud or scale.