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Thread: Do I need to worry about CH with a vinyl liner?

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    Join Date
    Jul 2011
    Location
    Northern MN
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    21

    Do I need to worry about CH with a vinyl liner?

    Hi everyone,

    Newbie to the forum and to owning a pool. I have a question on CH. I see in the Pool School under ABCs of Chemistry that CH doesn't matter for a vinyl pool, but then under the Recommended Levels thread, it recommends 50-300. My pool store gave me some "CH raiser" as part of the start up kit. Wondering if I need to bother. Is it bad to have it too low? (and no I haven't tested the level yet, the pool store did though, but I didn't get the number).

    Love the forum!

    Thanks,
    Rob
    24-ft round Radiant AG, fully in the ground, 14,500 gal
    Sand filter, 1.5 HP pump, vinyl liner
    9 months of winter, 3 months of tough skating!

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    Mod Squad zea3's Avatar
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    Jul 2009
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    Houston, Texas
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    Re: Do I need to worry about CH with a vinyl liner?

    The minimum of 50 Calcium is to protect any heaters that may be plumbed into the pool. It is good to have some calcium in the water even with a vinyl liner. Most water has some calcium in it. Go ahead and test your water and if you have at least 50 ppm calcium you don't need to worry about it.
    TFP Moderator
    Helpful links: TF Test Kits,TFP Pool School, PoolMath
    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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    Join Date
    Jul 2011
    Location
    Northern MN
    Posts
    21

    Re: Do I need to worry about CH with a vinyl liner?

    Thanks for the info and the quick response!
    24-ft round Radiant AG, fully in the ground, 14,500 gal
    Sand filter, 1.5 HP pump, vinyl liner
    9 months of winter, 3 months of tough skating!

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