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Calcium

5 Results
Calcium Hardness Increaser - 50 Lbs.
Haviland
33 in stock
$127.05
Calcium Hardness Increaser - 25 Lbs.
Haviland
406 in stock
$42.86
 
Calcium Hardness Increaser - 10 Lbs.
Haviland
13 in stock
$16.92
 
Calcium Hardness Increaser - 4 Lbs.
Haviland
57 in stock
$11.69
Calcium Hardness Increaser - 50 Lb. Bag
Poolweb
3122 in stock
$46.88

Pool Calcium Hardness Increaser

Calcium hardness must be actively managed (along with pH and total alkalinity, of course) to keep water in proper chemical balance. As a general rule of thumb, aim for 200–400 ppm!