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Pool Solutions Calcium Plus (10 lb) will raise the level of your swimming pool calcium hardness. Low calcium hardness will corrode your pool finish, plumbing and equipment. The ideal range of calcium is 200ppm to 400ppm.
6 1/4 lb per 10,000 gallons of water to raise hardness 50 ppm.
- Test water for hardness with test kit or strip.
- If calcium hardness is below 200 ppm, add 6.5 lbs. per 10,000 gallons to raise calcium level 50 ppm.
- Broadcast product over the surface of the water while the pump is running Do not pre dissolve this product.
- Do not add this product on the same day that either a pH increaser or an alkalinity increaser has been added to the pool water.