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Thread: white calcium like deposit on pool cover. indoor pool

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    Join Date
    Mar 2015
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    white calcium like deposit on pool cover. indoor pool

    Hi

    Has anyone come accross this. A white calcium like deposit on pool cover. I ws told it was the result of algae built up residue after cleaning off the algae.

    Does anyone know of how to remove it? power washing does not touch it. http://easyhosting.net/poolcover1.jpg

    Thanks
    iavapool.

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    Mod Squad JohnT's Avatar
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    Apr 2007
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    SW Indiana
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    Re: white calcium like deposit on pool cover. indoor pool

    Welcome to TFP!

    Doesn't look or sound like anything algae related. Calcium would be a guess, but it could be most any mineral present in the water or pool chemical added.

    Can you chip a small piece off and add it to a little acid to see if it fizzes?

    To really give advice, we'll need a good set of test results. TA, Hardness, CYA particularly, as well as a description of what kind of chemicals you use in the pool for chlorination and pH adjustment.
    TFP Moderator
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