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Thread: High CYA and need to drain

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    High CYA and need to drain

    Hi, I'm new girl, and I, too, have high CYA and need to drain it, but am also looking for best way to drain, as the pool is not plumbed into city sewer. Will all that draining acid not hurt growing things??
    6K gal., cartridge filter, AG
    Dallas, TX

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    Mod Squad jblizzle's Avatar
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    Re: High CYA and need to drain

    Welcome to TFP!

    Post up test results and we will better be able to answer the question, although I think the water would have to be pretty out if whack to cause as problem.
    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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    Re: High CYA and need to drain

    Thanks for the welcome!
    I'm awaiting delivery of my test kit so have been using pool store's water analysis. The CYA has been consistently over 100, as high as 138, though last test (3/22), after I drained a foot of water, was down to 100. Most recent analysis includes the following:
    FC 3
    TC 3
    pH 7.6
    TA (adjusted [whatever that means]) 71
    CH 451
    CYA 100
    Saturation Index (not sure what this means, either) 0.4
    Water is slowly draining again through garden hose, and I'm hoping for the best. Perhaps I should drain 2 feet this time.
    6K gal., cartridge filter, AG
    Dallas, TX

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    linen's Avatar
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    Re: High CYA and need to drain

    Welcome to tfp, Greta

    Pool store cya results are tend to be very unreliable. I would recommend waiting to another drain/refill until you get your own kit test numbers. Then you can be more efficient/smart with how you do it. Which kit are you getting?
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: High CYA and need to drain

    Thanks for the animated welcome, and suggestion.
    I've ordered the Taylor K 2006. Hoping it will hurry up and arrive. Things are warming up in TX and I dread some algae event before I've got the chemistry worked out. I've already been dealing with black algae due to debris held over winter under steps. My negligence. Wedding cake steps are for sale!
    6K gal., cartridge filter, AG
    Dallas, TX

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    Join Date
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    Re: High CYA and need to drain

    POP!
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

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    Re: High CYA and need to drain

    Excuse me??
    6K gal., cartridge filter, AG
    Dallas, TX

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    Richard320's Avatar
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    Re: High CYA and need to drain

    Quote Originally Posted by Greta
    Excuse me??
    POP = Pool Owner Patience.

    I backwash and drain my pool onto the lawn and haven't seen any ill effects. I don't have a salt water pool.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  9. Back To Top    #9

    Re: High CYA and need to drain

    Oh, of course. POP.

    Thanks for the encouragement on draining. It was your patient expertise on water chemistry that allured me, along with many other helpful posts.
    6K gal., cartridge filter, AG
    Dallas, TX

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