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Thread: Cal Hypo in Diamond Brite surfaces

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    Cal Hypo in Diamond Brite surfaces

    I have had my Diamond Brite surface in my pool now for about 4 years. I occasionally use cal hypo to chlorinate my pool and I also use liquid chlorine as well, I just switch back and forth with them.

    Now, Ive been hearing from a bunch of pool guys and neighbors that it is not a good idea to use cal hypo on my diamond brite sruface. Like I said I've been using it on and off and I have had no problems with my surface. Is this true? Is it a bad idea to use cal hypo on a diamond brite surface?
    Cape Coral, FL

    2003 Jacuzzi Premium J350 w/ozonator & cover

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Cal Hypo in Diamond Brite surfaces

    Welcome to the forum.

    Do they say why? I have never heard that. Actually, there are times when it may be beneficial.....what is your CH level?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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

    Re: Cal Hypo in Diamond Brite surfaces

    Cal-hypo won't damage your surface, that's bunk. It is a common myth though; I've been told cal-hypo will eat the pebbles out of my pebbletec
    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!
    TF Test Kits -- PoolMath -- Pool School
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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Cal Hypo in Diamond Brite surfaces

    There is a risk, but it is indirect. People who use a lot of cal-hypo will raise their CH levels significantly, and if they keep using cal-hypo will eventually have calcium scaling. Scaling on a white plaster pool is not too terrible, since it is often difficult to see. But scaling on diamond-brite is very obvious and doesn't look at all good. As long as you monitor your CH level and don't let it get too high you will be fine.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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