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Thread: Calcium levels in a vinyl pool with a heat pump

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    chessie6's Avatar
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    May 2010
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    East Hartford, Connecticut
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    Calcium levels in a vinyl pool with a heat pump

    Hi, in having a heat pump that my water flows through all the time when the pump is on, is it advisable to keep calcium levels higher than the minimum recommendation of 50 for a vinyl pool? Just wondering since I keep my calcium levels higher in my hot tub to help protect the equipment and so am wondering what the recommendation is for a vinyl pool.

    Thanks much as always,
    Jan
    Summer: 19 x 37 Pacific Graphex IG modified oval, aztec marine vinyl liner, 24,000 gal, 3.5 feet to 8 feet, 1 hp Hayward C4025 Swim Clear 4-cartridge filter, 12.5% Liquid Pool Shock for sanitizing, 1 super wide mouth skimmer, 4 returns (2 therapy jets in steps), Hayward Heat Pro heat pump, non-curved pool slide, 6' jump board, 8 ml blue solar cover, TF-100 test kit, had pink algae in 2010 Winter: Hot Springs Vista Spa, 500 gallons.

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    JasonLion's Avatar
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    May 2007
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    Re: Calcium levels in a vinyl pool with a heat pump

    Calcium is not required to protect equipment. Calcium might be required to satisfy the conditions of your warranty, but doesn't make any actual difference to the pump, plumbing, heater, etc.

    Low CH levels can damage plaster, and high CH levels can cause calcium scaling in any kind of pool. As long as there isn't calcium scaling, the equipment will be just 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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    chessie6's Avatar
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    May 2010
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    East Hartford, Connecticut
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    Re: Calcium levels in a vinyl pool with a heat pump

    Oh my gosh - well, glad I asked and now I know the truth. Thank you, Jason!
    Best,
    Jan
    Summer: 19 x 37 Pacific Graphex IG modified oval, aztec marine vinyl liner, 24,000 gal, 3.5 feet to 8 feet, 1 hp Hayward C4025 Swim Clear 4-cartridge filter, 12.5% Liquid Pool Shock for sanitizing, 1 super wide mouth skimmer, 4 returns (2 therapy jets in steps), Hayward Heat Pro heat pump, non-curved pool slide, 6' jump board, 8 ml blue solar cover, TF-100 test kit, had pink algae in 2010 Winter: Hot Springs Vista Spa, 500 gallons.

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