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Thread: white filmy substance in pool upon opening

  1. Back To Top    #1

    Join Date
    May 2008
    Location
    Gardner, Kansas
    Posts
    13

    white filmy substance in pool upon opening

    They came and opened my pool today. There was a white filmy substance that started appearing right away. It almost looked like toilet paper and would disintegrate when we tried to pick it up with the net. Pool people were alittle perplexed as well. Any ideas?
    40X16X24 L-Shaped Inground Pool
    Vinyl Lined
    Sand filter

  2. Back To Top    #2
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: white filmy substance in pool upon opening

    Please post a full set of test results (and tell us how the results were achieved -strips, drop-based kit, pool store) and we can help you better.

    Also, time to update your profile to include your pool equipment and specs in your signature.

    Go to User Control Panel, then Profile, then Edit Signature. You are allowed 5 lines of text: size, plaster/vinyl, inground, sand filter, etc. Use my signature as an example of the kind of info we need.

    Thanks.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  3. Back To Top    #3

    Join Date
    May 2008
    Location
    Gardner, Kansas
    Posts
    13

    Re: white filmy substance in pool upon opening

    Ok here are the numbers from a chemical test kit.

    Alk 120
    PH 8.0
    Chlorine 0
    Calcium 200
    Cyn Acid 0

    They added muratic acid, conditioner, shock and clarifier.

    Thanks for any help
    40X16X24 L-Shaped Inground Pool
    Vinyl Lined
    Sand filter

  4. Back To Top    #4

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,085

    Re: white filmy substance in pool upon opening

    Well, you've got some issues, for sure.

    From your description, the "white stuff" sounds like white mold, but that's a guess.

    From reading your other posts, however, it looks like you have been chronically low on chlorine so white mold makes sense.

    You will need to read the basic articles in Pool School.

    What did you test your water with last year and what did you use to chlorinate?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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