The importance of calcium in pool water chemistry is often underestimated. In properly balanced water, high calcium provides many benefits.
Calcium can form a protective layer that can increase the lifespan of a pool by protecting it against corrosion. Calcium can also improve pool filtration by acting as a filter aid to capture smaller particulates.
When combined with good water chemistry management using the Langelier Saturation Index (LSI), calcium makes water chemistry behave more predictably. Free mobile LSI apps and on- line LSI calculators now make it easy to determine where a pool’s chemistry should be.
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