Calcium Hardness
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DIAMOND POOL SERVICE, INC
"YOUR POOL'S BEST FRIEND" 
What is Calcium Hardness?
Calcium hardness is a measure of the calcium (Ca+2) ion concentration in water expressed as calcium carbonate (CaCO3). Pool water requires a certain amount of calcium. If the level of calcium is too low (soft water), the water will be corrosive and dissolve calcium and other minerals from plaster pool surfaces and metal equipment components. If the calcium level is too high (hard water, supersaturated), it can cause turbid water and deposit calcium carbonate scale on pool’s surfaces and recirculation equipment, particularly heat exchanging surfaces. |
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