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Thread: Buying CYA

  1. Back To Top    #1

    Join Date
    Jun 2009
    Columbia, SC

    Buying CYA

    Is it worth buying CYA? I had a new vinyl liner installed over the winter and fresh water was put in. I've got it all cleaned up and it's ready to go but there's no CYA in the water (and I mean no) so it's burning through chlorine. I currently use the liquidator but before my rebirth I used pucks and powdered shock. I find the pucks build the CYA up pretty rapidly and I've got a bucket of them so I was just going to use them until the CYA is in the right range and then switch back to bleach. I'd be interested in hearing whether people think that's a good approach and if not why.
    20K gal, vinyl, 3/4 HP pump, Hayward sand filter

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Buying CYA

    Sounds like a plan since you already have them. Have you calculated how much cya each tablet will add in the poolcalculator?

    You just need to be aware and it seems like you grasp the concern of getting cya too high.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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  3. Back To Top    #3

    Join Date
    Nov 2010
    Calera, Al

    Re: Buying CYA

    You can use the pucks till your cya reaches around 50 then switch on the liquidator.
    17,000 gal, IG Gunite Diamond Brite plaster Kidneybean,w/7x11 tanning ledge& 3x5 swimout bench,244T 300lb Hayward Pro high rate sand filter(63 GPM) , Hayward 1Hp Super Pump w/3/4 hp booster pump, Polaris 280, Laars Lite 2 175k N/G Heater, Tf-100, Speed stir

  4. Back To Top    #4
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Buying CYA

    Just to reinforce. I'd use them till I got to where I wanted to be with the CYA then switch to bleach.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  5. Back To Top    #5
    XsAllOverIt's Avatar
    Join Date
    Dec 2010
    Mount Airy, Maryland

    Re: Buying CYA

    I also do that every spring. I've had pucks in my strainers for the last 2 weeks and prior to opening, my CYA was near Zero. When I get to where i want, right back to Clorox until 70 degree water - then life kicks in with the SWG where all I need to do is drop a cup of muriatic acid in about once a week, clean the pool once a week and drink beer while watching everyone else swim ALL SUMMER! Who wouldn't want a pool. Everyone reading this, if you are spending a LOT of time and a LOT of money balancing a pool, you aren't following much of this site's advice.
    18 x 36 Inground Gunnite, White Plaster 21K gallon
    18" raised spa, 8' Diameter (620 gallon)
    Triton II Sand filter, Intellichlor IC40 SWG
    Pentair Pump, Max-E-Therm 400 BTU
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