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Thread: calcium hardness

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    calcium hardness

    My CH is 85ppm from the tap. I was told by my dealer that the hot springs spas are required between 50-150ppm. Am I safe with it at 85 ?..on here you say 100-130.
    thank you.

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    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: calcium hardness

    In any case you need to follow the mfg's recommendations to preserve any warranty. Besides that, low CH will cause issues in anything except vinyl.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: calcium hardness

    maybe i'll add just a teaspoon.

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    Melt In The Sun's Avatar
    Join Date
    Oct 2009
    Tucson, AZ

    Re: calcium hardness

    In a spa, low CH sometimes causes excessive foaming. If you don't find that to bean issue, 85 is fine in your spa.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
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