Puri Tech Powder Calcium Hardness Increaser 40 lbs Calcium Chloride for Swimming Pools

Dosage: 2,000 Gallons: 1.5 Lbs to increase hardness 50ppm, 3 Lbs/100ppm, 6.25 Lbs/200ppm 5,000 Gallons: 3 Lbs to increase hardness 50ppm, 6.25 Lbs/100ppm, 12.5 Lbs/200ppm 10,000 Gallons: 6.25 Lbs to increase hardness 50ppm, 12.5 Lbs/100ppm, 25 Lbs/200ppm 20,000 Gallons: 10.5 Lbs to increase hardness 50ppm, 25 Lbs/100ppm, 50 Lbs/200ppm Active Ingredients: Calcium Chloride Due to product variety and changes, the picture shown of the product may not represent the actual product packaging.. Raises calcium level in swimming pool liquid.Calcium Hardness level prevents foaming, equipment and surface erosion and scaling. Puri Tech Swimming Pool Granular Calcium CAL Hardness Increaser Plus 40lbs - 2 bags of 20lb  BRAND NEW PACKAGING! Puri Tech Chemicals now come in a resealable bag for your convenience