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Increases calcium hardness in swimming pool water. Protect against corrosion and erosion on metallic and granite surfaces.


1. Check total calcium hardness using a testing kit. The ideal recommended level is
200 to 300 ppm.

2. To increase total calcium hardness by 10 ppm, dissolve in a bucket of water 130 g of CALCIUM per 10,000 L of pool water. Add to the pool.

3. Check calcium hardness levels regularly and make necessary adjustments.


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