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Where does the calcium that builds up on my swimming pool tile come from?

April 26, 2017builds calcium swimming pool tile

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Where does the calcium that builds up on my swimming pool tile come from?

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A. Calcium is naturally present in our tap water, and at certain levels is an intricate part in your pool’s water chemistry. When your calcium levels become too high, the water can no longer hold all of the calcium in solution, and the calcium starts to deposit on your pool tile and other surfaces. Calcium deposits also occur when water is not properly balanced; causing the calcium to fall out of solution even if the calcium is not at a high level.