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Thread: Screened Pool

  1. Back To Top    #1

    Join Date
    Aug 2010
    Central Fl

    Screened Pool

    I'm a newbie here and really enjoy your site. Quick question, how much does a screen affect chlorine usage? I've just started using BBB and my pool looks great because of it! Don't have any real history yet, but it seems that my chlorine level is taking a long time to come down after reaching my shock level of 16 plus.

    FC 13
    CC 0
    pH 7.5
    TA 110
    CH 370
    CYA 50

    Pool is probably 6-8 degrees cooler than friends with no screen, so it obviously blocks a good bit of sun.

    18,000 Gal IG Plaster
    100 SF Hayward Cartridge
    3/4 HP Hayward
    Pool is screened and shaded with a big-*#! oak tree

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Screened Pool

    Most screens have a percentage rating that determines how much sunlight they block.

    So if your screen blocks 30% of the sunlight, that might be a good start to assume there would be that much reduction in chlorine usage. That is simply a WAG with no data behind it.

    It does seem that the average FC consumption here on the forum with your CYA content is around 2ppm (no swimmer load). You might check your FC loss against that as a guideline but there are still alot of variables to contend with.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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