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Thread: sand filter and super chlorination

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    sand filter and super chlorination

    Quick question...I'm fighting off a big green algae bloom in my pool so I'm about to load the pool with a lot of bleach (according to the pool calc anyways) but my question is, does the sand filter effect the chlorine level? Should I add the chlorine then turn off the pump or should I turn the filter to recirculate and bypass it or should I just let the pump and filter run as normal?
    12' x 36" Intex AGP on a raised concrete slab under a ramada in sunny Arizona. Borated, balanced, and beautiful blue.

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    linen's Avatar
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    Jul 2010
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    Re: sand filter and super chlorination

    First, make sure you have reviewed the shocking process if you haven't recently. It is not just about raising the FC level, but then keeping it there until you pass the three criteria in that pool school article.

    Quote Originally Posted by k9mikep
    does the sand filter effect the chlorine level?
    No

    Quote Originally Posted by k9mikep
    Should I add the chlorine then turn off the pump or should I turn the filter to recirculate and bypass it or should I just let the pump and filter run as normal?
    Generally we recommend to leave the pump on and valve set to filtering during the shocking process. This is needed to remove the dead algae carcasses in the water.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Join Date
    Sep 2009
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    Greentown, IN
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    Re: sand filter and super chlorination

    Let the pump and filter run 24/7 until you are done shocking. The chlorine will work to kill the algae and the filter will work to remove the dead algae. Won't hurt your filter a bit.
    Indiana, ABG 24'x52" Galveston by Blue Cascade (Craigslist buy w/part of deck included), 13,500 gallons, Intex SWG, solar panels mix 2, TF-100 test kit.

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  4. Back To Top    #4

    Re: sand filter and super chlorination

    Awesome,thanks for the info!
    12' x 36" Intex AGP on a raised concrete slab under a ramada in sunny Arizona. Borated, balanced, and beautiful blue.

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