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Thread: Helping a friend who has been pool store'd

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    Helping a friend who has been pool store'd

    My friend has been going to a pool store for years. She has been using something that has obviously been adding cya. The store keeps telling her to shock, and then sells her cal-hypo(notice the CH results). I don't think she has every actually got the pool to shock level.

    I went to her house with my kit and here are the results.

    Fc .5
    Cc .5
    Tc. 1
    Ph 7.8
    Ta 250
    Ch 450
    Cya 100+

    Help me make a bbb convert.
    Attached Images Attached Images
    Under construction DIY 20x40 vinyl liner steel wall pool, Pentair 2hp wisperflo, Pentair tr100 sand filter, Pentair Minimax 400k heater, diving board, 8 foot sit n step, xtream waterslide, 1700 concrete deck, one amazing wife, 4 children and two German shepherds.

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    Guest

    Re: Helping a friend who has been pool store'd

    First thing would be to lower CYA by doing a partial drain and refill

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    Re: Helping a friend who has been pool store'd

    She is doing that today. So when she fills it back up I guess we test cya again and then begin the shock process if CYA is reasonable?
    Under construction DIY 20x40 vinyl liner steel wall pool, Pentair 2hp wisperflo, Pentair tr100 sand filter, Pentair Minimax 400k heater, diving board, 8 foot sit n step, xtream waterslide, 1700 concrete deck, one amazing wife, 4 children and two German shepherds.

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    Smykowski's Avatar
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    Re: Helping a friend who has been pool store'd

    Quote Originally Posted by rhumbaclave
    She is doing that today. So when she fills it back up I guess we test cya again and then begin the shock process if CYA is reasonable?
    CYA first.

    Then pH to 7.2

    Then shock.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
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    Re: Helping a friend who has been pool store'd

    Remind her to be patient! A pool like that is going to take a while to clear up. Stay strong - she'll probably want to convert back the old pool store ways after a couple days...
    16 x 32 inground vinyl pool (21000 gallons) (new liner installed 2014)
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    BoDarville's Avatar
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    Re: Helping a friend who has been pool store'd

    rhumbaclave:

    What is the pool surface of your friend's pool (plaster, vinyl, fiberglass, other???)? I'm assuming the pool in your signature is for your pool, not your friend's. Reason I ask is, since you are doing a partial drain & refill (D&R) mainly for CYA, you may also want to test the CH during this process. Plaster pools require some CH (ideally 250-350 ppm). However for vinyl and fiberglass pools, the CH should be kept at lower levels. If the pool has either a vinyl or fiberglass surface, try to get the CH below 300 ppm while you are doing a partial D&R. Would hate to see you complete the D&R, then get the pool in shape and later discover that the CH is still too high for the pool's surface. That would require another partial D&R to remove the excess CH.

    Click the Pool Calculator link in my sig for target levels of CH for the pool surface type as well as for CYA (pool surface doesn't matter for CYA). The thing to remember about CYA and CH is that it is much easier to add these chemicals if either amount is lower than your target than it is to get rid of them if either amount is too high.
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    Re: Helping a friend who has been pool store'd

    Thanks. It is a vinyl liner pool.
    Under construction DIY 20x40 vinyl liner steel wall pool, Pentair 2hp wisperflo, Pentair tr100 sand filter, Pentair Minimax 400k heater, diving board, 8 foot sit n step, xtream waterslide, 1700 concrete deck, one amazing wife, 4 children and two German shepherds.

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    Isaac-1's Avatar
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    Re: Helping a friend who has been pool store'd

    With a vinyl liner you never want to drain too low, you always want at least a foot of water in the shallow end, otherwise the liner may lift up and wrinkle.

    Ike
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