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Thread: Sand filter and chlorine burn rate

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    sam03v's Avatar
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    Sand filter and chlorine burn rate

    This may be a dumb question: If organic matter in the pool eats chlorine and the sand filter catches organic matter, will a dirty sand filter (say one that hasn't had the sand cleaned in 5 years) increase the burn rate of chlorine as the water moves through it? I suppose it must, but after awhile the stuff trapped in the filter eventually stops eating the chlorine, but then it keeps piling on so who knows...It's just a thought my brain cell had while I was doing the SLAM to my pool.
    24000 gallon, 18' x 36' IG with deep end, vinyl, built 1986, new liner 2012,
    3/4 hp uprated 2 spd on hayward super pump
    1.5" dia lines, sand filter, polaris 360
    TF-100 test kit

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    JasonLion's Avatar
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    Re: Sand filter and chlorine burn rate

    Backwashing the filter should remove whatever is in it. Very little accumulates long term, and none of that continues consuming chlorine after a week or two.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Mod Squad jblizzle's Avatar
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    Re: Sand filter and chlorine burn rate

    If you are concerned: How to Clean Sand Filter
    Jason, TFP Moderator
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    sam03v's Avatar
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    Mar 2013
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    Re: Sand filter and chlorine burn rate

    Thanks. I'm going to clean the sand soon. I saw a YouTube video that showed the procedure and I'm very curious to see what's in there.
    24000 gallon, 18' x 36' IG with deep end, vinyl, built 1986, new liner 2012,
    3/4 hp uprated 2 spd on hayward super pump
    1.5" dia lines, sand filter, polaris 360
    TF-100 test kit

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