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Thread: Ideal CYA for my pool and thoughts on my readings overall.

  1. Back To Top    #1

    Join Date
    Jul 2011
    Lehigh Valley, PA

    Ideal CYA for my pool and thoughts on my readings overall.

    I have a 21 AGP--looks pretty clear overall. No CC's. I believe the CYA level is about 25 at this point(not sure...put in over the last week or so, took forever to dissolve. ). The pool calculator states I should be at 30-50 but I have gotten some responses to stop at 30.
    So here are my current levels.
    I stopped chlorine for a few days so now its down to .5
    I put in chlorine to bring it up to 4.5
    PH was at 7.2. I added 40 oz of baking soda which should bring that to 7.5.
    The TA is about 55 (as of last week) and I added 40 oz of baking soda to get it to about 70
    Being I have a AGP I dont think I need to worry about CH.
    We currently are getting rain but I dont *think* enough to be concerned about.
    21' All Steel AGP with Resin caps, Heyward S244T Sand Filter, Heyward 1HP 2 speed pump

  2. Back To Top    #2
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    SWSuburban Chicago, IL

    Re: Ideal CYA for my pool and thoughts on my readings overal

    How does your water look?
    Is your daily chlorine source liquid/bleach? If so you need to add a little every day or every other day to keep it above your minimum which is 2. I would never let it get lower than that to avoid a potential problem with algae developing. You don't need to worry about CH unless it is too high or you have new equipment like a heater that has a warranty that requires a specific CH level.
    We recommend 30-50 - 50 at the start of the season as it will likely slowly drop over the season if you are using liquid. If you are using tabs a lower number is better as it will slowly climb over the season. How many more weeks of swimming do you have?
    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
    Perfectly Clear Pool Service, Find me on Facebook!

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