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Thread: High CH

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    Join Date
    Jun 2015

    High CH

    How can I lower the CH in a plaster pool ?

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    Mod Squad Patrick_B's Avatar
    Join Date
    Jun 2011

    Re: High CH

    Welcome to TFP Bronco!

    You can only change it by adding water with less CH in it. You have to remove the old and replace with the new. As water evaporates, it leaves CH behind, so it builds up over time when you add hard water. A form of Chlorine (Calcium Hypochlorite) can also add CH to the water, so be aware of that.

    What is your CH level now?
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