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Thread: Hi Chlorine levels in SWG pool

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    Join Date
    Jun 2015
    Belmar, NJ

    Hi Chlorine levels in SWG pool

    HI have a SWG pool that has a high FC level, My tester indicates around 10 on the dip stick. My SWG was set at 50%, basically the same setting it was at all last year. The only difference this year has been the use of a solar cover (also the weather has been cool). Will the cover and weather hold the FC from breaking down? I just reduced the SWG from the 50% to 35% in the hope it reduces the FC. All other chem looks normal. FYI the pool is 13,500 gal, vinyl, in ground.

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    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Hi Chlorine levels in SWG pool

    Welcome to TFP!!!

    A cover will result in less FC being broken down by the sun. Thus the higher FC reading. Just lower the output like you did.

    I highly recommend you consider investing in one of the Recommended Test Kits as test strips have proven to be unreliable and inaccurate over and over and over again on the forum.

    Please add your pool details to your signature as described HERE as it will help us help you.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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  3. Back To Top    #3
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Hi Chlorine levels in SWG pool


    Yes, the cover blocks UV light, so you lose less FC.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  4. Back To Top    #4's Avatar
    Join Date
    May 2014
    Georgetown, ON, Canada

    Re: Hi Chlorine levels in SWG pool

    Belmar! stopped in at the 10th avenue burrito one summer while on vacation
    32,000L Fibreglass Leisure Pools IG 12.5'x23'x5' Pump: AstralPools BX1 1.0HP
    Filter: AstralPools ZX-310 SWCG: AstralPools VX7T
    Heater: Hayward H250FDN Test Kit: TF-100

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