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Thread: Pool opening : this is the question:To shock or not to shock

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    Water_man's Avatar
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    Pool opening : this is the question:To shock or not to shock

    Hi all,
    My pool last season was run stricktly by the BBB method. At the end of the season (Oct 08) I closed it with shocking, and soon it will be reopened. Following the advice of chemgeek and waterbear, I've adopted this "shocking rule of thumb": FC higher than 0.5? Shock! No? Don't shock! Should I follow this rule on pool opening, or should I shock no matter what?
    This is my ticket for Heaven (when all's working..) :
    22k Gal gunite IGP, 38 SF Anthony DE filter, 1 HP Hayward Super Pump
    380k BTU Raypak Natural Gas Heater (Model RP405A) and solar cover
    8 gal Liquidator w/ 12% bleach, Dolphin Diagnostic Advantage robotic cleaner. 3800 ppm salt, 50 ppm borates.

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    duraleigh's Avatar
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    Re: Pool opening : this is the question:To shock or not to shock

    BBB is all about testing and interpreting the results and then knowing what to do about it,

    Your test results will give you the best indicator of how you should open......that and the visual condition of your water.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    frustratedpoolmom's Avatar
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    Re: Pool opening : this is the question:To shock or not to shock

    I think you mean a CC higher than .5 you should shock. That's one of the criteria. Cloudy water, and FC that won't hold, are two other indicators.

    What are your test results?

    Shocking on opening is not always a requirement, it depends on your test results.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Water_man's Avatar
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    Re: Pool opening : this is the question:To shock or not to shock

    Quote Originally Posted by frustratedpoolmom
    I think you mean a CC higher than .5 you should shock. That's one of the criteria. Cloudy water, and FC that won't hold, are two other indicators.
    What are your test results?
    Shocking on opening is not always a requirement, it depends on your test results.
    Oops. I meant CC, of course. I haven't opened yet. Just getting mentally ready... So far water's looking clear but I haven't tested yet.
    This is my ticket for Heaven (when all's working..) :
    22k Gal gunite IGP, 38 SF Anthony DE filter, 1 HP Hayward Super Pump
    380k BTU Raypak Natural Gas Heater (Model RP405A) and solar cover
    8 gal Liquidator w/ 12% bleach, Dolphin Diagnostic Advantage robotic cleaner. 3800 ppm salt, 50 ppm borates.

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