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Thread: Winterizing above ground pool..PH and stablizer?

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    Join Date
    May 2012
    Location
    NE OK
    Posts
    54

    Winterizing above ground pool..PH and stablizer?

    Question: My PH is 8.2+, I should lower that before closing, right? Also, I have next to no stablizer. Is that a big deal in closing the pool? When I opened the pool earlier this spring I had HORRIBLE calcium scaling. I do not want that problem again!!

    My current readings are:
    FC-11.5
    CC-.5
    TC-12
    PH-8.2+
    TA-110
    CH-190
    CYA-0-5
    25,000 gallon
    AG
    Sand
    filter size is 26 diameter
    flow rate 70 GPM
    AG Pool (33ft.) was newly installed in spring 2011
    location: NE OK

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    duraleigh's Avatar
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    Apr 2007
    Location
    Sebring, Florida
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    Re: Winterizing above ground pool..PH and stablizer?

    Of course, lower the pH immediately. It should never have been allowed to get that high and is a VERY significant factor for scaling in a pool.

    At this point in the season, CYA is not that important but you should probably read "The ABC's of Pool Water Chemistry" up in Pool School to get a better grasp of normal water parameters to head off issues next Spring.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
    May 2012
    Location
    NE OK
    Posts
    54

    Re: Winterizing above ground pool..PH and stablizer?

    Thanks! That's what I thought. I added 64 oz. muriatic acid. I will test it again later this evening. I constantly battle rising PH.
    25,000 gallon
    AG
    Sand
    filter size is 26 diameter
    flow rate 70 GPM
    AG Pool (33ft.) was newly installed in spring 2011
    location: NE OK

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    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: Winterizing above ground pool..PH and stablizer?

    Quote Originally Posted by curlyfry22
    Thanks! That's what I thought. I added 64 oz. muriatic acid. I will test it again later this evening. I constantly battle rising PH.
    Looking back at your previous threads, your TA testing is either inconsitent or something is adding TA to your pool. Getting TA down will help a lot with your ph rise. Have you tested your fill water for TA and ph?
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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