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Thread: Too much Calcium in the water?

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    Too much Calcium in the water?

    After 5+ years we were just told by the pool store that we have too much calcium in the water. This is a pebbletech finish cement (gunite?) pool. They said to take about a third of the water out and put in fresh. The water is crystal clear, and about 80 degrees.

    Since we are in Florida where it rains all summer, should we just wait until the rainny season hits?

    This is the first I've heard of this and none of our neighbors have ever heard of too much calcium.

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    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: Too much Calcium in the water?

    And what does the pool store consider as "too high"?

    Too much calcium can cause scale but it can also be managed with PH. Post your CH, TA & PH.
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    mrcarcrazy's Avatar
    Join Date
    Jan 2014
    Odessa, TX

    Re: Too much Calcium in the water?

    Step one will be to get a proper test kit so you can see what your numbers really are. It's not uncommon for the pool stores to be terribly inaccurate. (correct me if I'm wrong)
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    JasonLion's Avatar
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    May 2007
    Silver Spring, MD

    Re: Too much Calcium in the water?

    This is a problem that is quite common in a few areas of the country, where tap water is very high in calcium. However, I have never heard of it happening in Florida, where tap water is normally very low in calcium.
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    Smykowski's Avatar
    Join Date
    Sep 2011
    Gurnee, IL (North Suburban Chi-town)

    Re: Too much Calcium in the water?

    Like Jason said, we can probably help you because of your location, but in order to do so, we need a full set of test results, preferably your own and not the pool store. How are you chlorinating?
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    Mod Squad Patrick_B's Avatar
    Join Date
    Jun 2011

    Re: Too much Calcium in the water?

    It is indeed a problem and a bad one for many of us. Did they give you a number? I don't know FL water, but I too would say a good test kit will tell you. If you had some CH to start and used Calcium Hypochlorite as a chlorine source long enough, you could have some CH in your pool. How much is the obvious question.
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