Hardness Increaser


Water hardness increaser, or calcium chloride, is used to increase the calcium concentration in the pool.


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Calcium is important to the water balance in your pool.  Low calcium will cause long-term damage to plaster, vinyl liners, grout in between tiles, metal rails, and even concrete decking around the pool. High calcium will cause scaling.  Proper calcium levels also help to prevent foaming.

Normal Calcium Hardness levels in a pool are 200-400 ppm.

Dissolve in water before being added to the pool and should be applied to deep end of pool, or around the pool in above grounds, with pump running for minimum of 4 hours.  If granules collect on bottom of pool, simply brush to disperse.

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4lbs, 10lbs, 25lbs, 50lbs


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Product is avaialble in below zipcode areas.
21701 21702 21703 21704 21710 21754 21755 21769 21770 21774 21778 21788 21793 21798