This product increases calcium hardness to prevent etched plaster, corrosion and unbalanced pool or spa water. Compatible with Chlorine, Bromine, Biguanide, Copper / Silver and ozone treated pools and spas. When used properly, this product prevents damaged to pool equipment.

Features:

• Increases calcium hardness in swimming pool water

• Prevents damage to pool and equipment

• Granular formula

Size:

• 10 Pounds

Active Ingredients:

• Calcium Chloride 100%

Directions for use:

• This product should be pre-dissolved in a pail of water adding 1/2 pound of product to one gallon of water. Pour mixture into the deep end of the pool with the pump running. Repeat until the correct amount has been added. Avoid over treating. If more than 3 pounds of this product is needed per 10,000 gallons of pool water, separate doses and apply this product at least 12 hours apart. This will give the pool water an opportunity to adjust and avoid clouding. Calcium hardness should be maintained between 150 and 350 ppm. To raise calcium hardness 10 ppm use 2 ounces per 1,000 gallons of pool water.