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Thread: Brand new pool-First time startup-Shock Help needed

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    Glock30's Avatar
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    Apr 2012
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    Brand new pool-First time startup-Shock Help needed

    I am looking to shock my pool for the first time.
    My tested FC level is 0.0
    For a 24000 gal pool, how much liquid chlorine should I add to start?
    The water looks very clear, the bottom is dirty but I will be vacuuming before I shock.

    Thanks
    18' X 36' Inground Pool 26,000 gallons. SuperMax 27mil/27mil Vinyl Liner-Installed Fall 2011
    Pentair Intellipro Programable Pump (Model 011018) // Pentair S8M 500 Cartridge Filter // Circupool RJ45 Salt Chlorinator
    2 Hayward Skimmers // 3 Returns // 2 Savi Melody Pool lights // TF-100 Test Kit.

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    Re: Brand new pool-First time startup-Shock Help needed

    You'll need to know your CYA level first. Put that in the pool calculator, and you'll see what your shock value needs to be.
    Kansas City, MO
    13500 gallon Foxx vinyl sport pool--inground (1988)
    Cristal-Flo sand filter
    Ray-Pak 406A digital
    1.5 HP single speed
    400 gallon Heldor inground spa, octagon

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    duraleigh's Avatar
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    Re: Brand new pool-First time startup-Shock Help needed

    Gock30,

    The Pool Calculator and articles in Pool School are easy to find in many of the signatures on here, including mine Post back questions.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Glock30's Avatar
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    Re: Brand new pool-First time startup-Shock Help needed

    CYA level is currently 0
    Calculator tells me to add10 lbs of stabilizer.
    18' X 36' Inground Pool 26,000 gallons. SuperMax 27mil/27mil Vinyl Liner-Installed Fall 2011
    Pentair Intellipro Programable Pump (Model 011018) // Pentair S8M 500 Cartridge Filter // Circupool RJ45 Salt Chlorinator
    2 Hayward Skimmers // 3 Returns // 2 Savi Melody Pool lights // TF-100 Test Kit.

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    JasonLion's Avatar
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    Silver Spring, MD
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    Re: Brand new pool-First time startup-Shock Help needed

    When making large adjustments to levels (for example raising CYA from 0 to 50) it is often a good idea to add about 2/3 or 3/4 of what you calculate that you need, give it time to mix in (a week for CYA), test again, and continue adjusting from there. Otherwise you risk accidentally adding too much.
    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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