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Thread: Do you HAVE to shock if numbers are alright?

  1. Back To Top    #1

    Join Date
    Aug 2009
    Spivey's Corner, NC

    Do you HAVE to shock if numbers are alright?

    So we took the cover off and all my numbers when I tested were in range except the CYA was low and I needed to add salt. So I added the salt and CYA. All other numbers were good and the pool is crystal clear except for a little dirt on the bottom. So, I'm assuming I don't need to shock it.

    Thanks this is the first time opening the pool. PB closed it for us when he came back to install cover.
    True L Vinyl liner 16x24x41 3 to 8' depth, hayward sand filter + pump, goldline salt system, 25k gallon, buddy seat and diving board

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Do you HAVE to shock if numbers are alright?

    There is no need to shock as long as the water looks good, CC is 0.5 or lower, and you can maintain a normal FC level.
    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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