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.