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Thread: CH of 700 should I be concerned

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    Join Date
    Jan 2012
    Mission, TX

    CH of 700 should I be concerned

    Tested my water and results are FC 5, PH 7.6, TA 90, CYA 70, CH 700, Salt 3400, Borate 30. Water looks Great. Should I be concerned with a high CH. I am going to work on lowering TA to 80 with MA. Also I would like to thank this forum for guiding me on testimg my borates using the drop test method with the reagents and supplies listed. It worked like a charm using the speed stirrer.
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    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    DFW, TX

    Re: CH of 700 should I be concerned

    No, you can manage your water with CH higher that that. We have plenty of people here with CH over 1000. Just keep an eye on your CSI in Poolmath and keep it slightly negative, -0.1 to -0.3, to prevent calcium scaling.

    More here, Pool School - Calcium Scaling
    And here, Langelier and Calcite Saturation Indices (LSI and CSI)

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