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Thread: Dead Cell? (again)

  1. Back To Top    #1

    Join Date
    May 2016
    Enterprise, AL

    Dead Cell? (again)

    Okay, so I finally got my salt to the right level (or around the right's pretty much where it should be but I won't get an accurate reading until my salt test kit comes later this week).
    I set my SWG to super chlorinate and it's been (supposedly) doing so for 24 hours...but I got home tonight and there's a nice, pretty green tint to my pool and my chlorine reading is next to 0. I plan on having the cell checked soon (maybe tomorrow if I can find a place that can do it), but it kind of sounds like it is dying, doesn't it?
    Two much bleach would I need to add to a 22,000 pool to get it where it needs to be?
    And is it possible that a high CYA content could somehow destroy chlorine? I went a little overboard, I reckon, when I got a low reading. I'm now reading about 110 ppm. Gonna drain some out of the pool and refill to get it to normal, and I doubt that too much CYA would mess up my chlorine, but I'd just like a little confirmation from people who know more than I do.

    Current chemistry:
    FC - 0
    TC - <1
    pH - 7.5
    TA - 110 ppm
    CYA - 110 ppm
    22,000 gal vinyl, AquaRite SWG with t-cell-15 salt cell, single speed 3450 rpm main pump, Hayward sand filter

  2. Back To Top    #2
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: Dead Cell? (again)

    No, high CYA didn't have any impact on the cell.

    Use the Chlorine CYA Chart to determine your target FC level and use Poolmath to calculate how much 8.25% bleach to add. Since the chart only goes to 100, target 13 ppm.
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