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Thread: Opening the pool - do I really need to shock

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    Opening the pool - do I really need to shock

    Hi,

    I just opened my pool (northern NJ) this afternoon and was wondering if I really needed to shock the pool as I have been reading if all the numbers seem good. I know the CC should be zero, but the .2 could have been my imagination because the water did look clear with a little pink tint.

    FC 2.0
    CC 0.2
    CYA 50
    PH 7.4
    TA 70
    Water temp 54.

    I have no problem shocking or putting in the other chemicals I have seen advertised in the pool opening kit....but if it isn't necessary then why bother.

    Thanks in advance for sharing your thoughts.
    2008 23K IG Liner, Pentair intellipump vf, 48DE filter, Heatpump, SWC, aquabot turbo T, K2006 Testkit

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    frustratedpoolmom's Avatar
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    Re: Opening the pool - do I really need to shock

    I would say bump your FC up slightly, then do an overnight test. If it holds, don't bother shocking.

    I opened to a residual of 3.5 - clear water. I didn't shock.

    Go for it, save yourself the bleach and the hassle. Disregard the .2, anything over .5 CC is cause for shocking.

    Don't you love opening to clear water?!
    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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    duraleigh's Avatar
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    Re: Opening the pool - do I really need to shock

    Your test results indicate no need to shock. Does yur water look nice? If so, I would agree with fpm.

    That's very nice work to keep your pool that clean over the winter....congrats!
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Opening the pool - do I really need to shock

    Thanks, the pool was crystal clear so I will not shock.
    2008 23K IG Liner, Pentair intellipump vf, 48DE filter, Heatpump, SWC, aquabot turbo T, K2006 Testkit

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    Casey's Avatar
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    Re: Opening the pool - do I really need to shock

    I haven't shocked since Sept. 08'. 8)
    dh-took-the-cover-off-more-pics-t10885.html
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    Water_man's Avatar
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    Re: Opening the pool - do I really need to shock

    Quote Originally Posted by jhirsch1
    Hi,
    I just opened my pool (northern NJ) this afternoon and was wondering if I really needed to shock the pool as I have been reading if all the numbers seem good.
    FC 2.0
    CYA 50
    Maybe you don't need to shock, but according to "the FC/CYA table" your FC should be minimum 3.7 and targeted at 5.7.
    What's your experience with the heathpump? What's the lowest air temp it can work with? Electric bills costs?
    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.

  7. Back To Top    #7

    Re: Opening the pool - do I really need to shock

    Thanks, I did bring the FC up.

    Regarding the heatpump. I am very happy with it. You just need to plan ahead. It can raise the temp from 75 to 80 in a few hours or so. Regarding the cost, I haven't really figured that out yet. With the pump running and air conditioning inside I'm not sure. I assume it costs about $10 a day (just a guess) which isn't bad unless you have it on for every day of the month.

    I think it can work once the air is in the 60's. I usually only use it when the air in 80 or more anyway and only to raise the temp to about 80 or so. If it's not that hot no one wants to swim anyway.
    2008 23K IG Liner, Pentair intellipump vf, 48DE filter, Heatpump, SWC, aquabot turbo T, K2006 Testkit

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