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Thread: cloudy days

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    Join Date
    Jun 2007
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    North NJ
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    cloudy days

    do I lose as much chlorine to the sun on cloudy days, as I do with full sun?
    Vinyl In Ground 18x36
    16,000 Gallon
    DE Filter
    No Heater

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    In the Industry

    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    My guess, and it's a guess, is almost. Clouds do not block much UV rays which I believe are the primary reason for Cl loss. That said, they do block some so my assumption is you would use less but not much less...maybe 25%.

    I usually don't respond with guessing but no one answered your post yet so this will bump it back up for someone who is more confidant with their reply.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    NWMNMom's Avatar
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    Apr 2007
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    Waaay NW MN
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    Use a cover, save a lot
    18x33x52 Buttressfree Seaspray (Wilbar) AGP - 1.5hp Pentair Maxim w/22" Pentair Meteor Sand Filter, Aqua Rite SWG System, Biltmore Walk In Steps - 2/4x20 Solar Panel Setup - Doheny Jet Drive (RIP -Pool Rover Jr) - finally hard plumbed the whole darned thing -
    Beats Driving to the Lake!

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