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Thread: Calcium Hardness

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    Join Date
    Jun 2009
    Location
    Newburgh,NY
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    13

    Calcium Hardness

    I have read on this site that calcium hardness is not that important for a vinyl pool. What about for my heater? And how about my aggregate concrete surface. I do notice more stones missing every year from the surface of my concrete that surrounds the pool area. Also, where is the best place to buy calcium chloride? Meaning other than a pool store. I just paid almost $40 for 20 lbs!
    18k gals, IG vinyl, Hayward DE, Aquarite Goldline SWG, Jandy XL3 heater, spill over spa, X-stream slide,2 hp super II pump

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    Join Date
    Jun 2009
    Location
    Newburgh,NY
    Posts
    13

    Re: Calcium Hardness

    I just found the page with the info for what and where to buy. I guess the calcium chloride for ice melting is the best bet!
    18k gals, IG vinyl, Hayward DE, Aquarite Goldline SWG, Jandy XL3 heater, spill over spa, X-stream slide,2 hp super II pump

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    Join Date
    Feb 2008
    Location
    Flower Mound, TX
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    5,062

    Re: Calcium Hardness

    Because vinyl liners don't leach out or take up calcium like plaster does, CH alone is of little concern on that front. The exception though, as you pointed out, has to do with the rest of the equipment (heaters). We recommend that you keep the CH in the water that is recommended in the product literature for heaters and such so that no warranty problems develop later. Your liner doesn't need CH, but other things might.

    Places that sell deicer products should have calcium chloride. This may be a seasonal (and regional) offering.
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
    TF Test Kits - Pool Math - Pool School
    "It depends."- JohnT

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    JasonLion's Avatar
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    May 2007
    Location
    Silver Spring, MD
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    37,887

    Re: Calcium Hardness

    Just to clarify, the heater, etc., don't need calcium. But the warranty might require it. There isn't any point in risking your warranty coverage. But if warranties were not an issue, there really isn't any other point to having calcium in a vinyl liner pool.
    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

  5. Back To Top    #5

    Join Date
    Jun 2009
    Location
    Newburgh,NY
    Posts
    13

    Re: Calcium Hardness

    Well, I just checked my warranty on my heater. There was only a one year warranty on the heat exchanger. It also mentioned that the warranty would be voided if the ph or t/a wasn't to their specs, but no mention of the calcium there. I guess I just wasted $40 on their calcium plus!
    18k gals, IG vinyl, Hayward DE, Aquarite Goldline SWG, Jandy XL3 heater, spill over spa, X-stream slide,2 hp super II pump

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