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Thread: at 0 cya using trichlor to increase cya levels

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    at 0 cya using trichlor to increase cya levels

    I've been shocking for 2 days now, I've tested CYA 3 times and it's at 0.

    I've only been using 6% bleach, I have huge bucket full of trichlor pucks that I would like to get rid of. We bought it for last years pool season and never used any since I was using the BBB method with great success. Thanks to you all!!!!

    How do you recommend raising the CYA level?

    Should I buy stabilizer?

    Should I add trichlor pucks, and if so is there any way to introduce it to the pool quickly, perhaps by grinding it, or dropping it into the pool?

    Or use 1 puck weekly in the feeder and use lots of bleach to compensate for the low CYA level?

    Which idea is the safest?

    Thanks,
    Hannah
    1) 22,000 gallons
    2) DE filter
    3) IG
    4) vinyl
    5) Hayward pro-grid 2420, 1 hp, 96 gpm

    Also have Dolphin diagnostic 2001

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    Richard320's Avatar
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    Re: at 0 cya using trichlor to increase cya levels

    I think I'd buy stabilizer to get CYA to 30, and load the puck feeder as full as it will get to finish the job.
    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.
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    Re: at 0 cya using trichlor to increase cya levels

    Personally, I'd sell the tablets on craigslist or some other forum and go buy some stabilizer and continue using the BBB method.
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    Mod Squad woodyp's Avatar
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    Re: at 0 cya using trichlor to increase cya levels

    Save those high dollar pucks for weekends away or vacation. A 4 lb bottle of CYA granular should be enough to do you. Good old HTH from Walmart is good.
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    Re: at 0 cya using trichlor to increase cya levels

    Thanks, I placed 4lb cya in a sock this morning, so far none has registered in a cya test.

    I left it hanging in the pool in a sock, not near the skimmer or a return, is that ok?

    Also, day 3 shocking and the water doesn't seem to be improving, since yesterday,it's the same cloudy, and is consuming huge amounts of chlorine, I went thru at least 15 gallons today of 6% bleach.

    Here's the process:
    after opening the pool, I spent the day lowering the ph to 7.6
    CH=100
    TA= 110
    FC=0

    we brushed, took out all the leaves and algae that we could scoop up with the net, and sent in the dolphin too.

    this eves numbers
    FC 5
    CC 1.5 (gone up, it has been .5 or 1 for 2 days)
    TA 70

    it's been raining all day here and some of yesterday too. I've been adding bleach about 5 times a day and brushing twice a day, should I continue to shock or should I address the TA levels,
    unfortunately I've misplaced my pH reagent so Leslies test today showed 7.6 pH, and their reagent is not compatible with the TFT kit. So i don't know what the pH is right now.

    What to do?
    My husband is not happy about the rapid bleach consumption, he thinks t here's something wrong, I told him it's normal. Is it?
    1) 22,000 gallons
    2) DE filter
    3) IG
    4) vinyl
    5) Hayward pro-grid 2420, 1 hp, 96 gpm

    Also have Dolphin diagnostic 2001

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    Mod Squad jblizzle's Avatar
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    Re: at 0 cya using trichlor to increase cya levels

    Move the sock to in front of a return and then squeeze it everytime you walk by to help it dissolve.

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    Jason, TFP Moderator
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    Re: at 0 cya using trichlor to increase cya levels

    You're doing fine. And probably the 6% bleach your using is not a true gallon. They seem to be selling 96 ounce bottles in place of a true gallon.
    18'x48" AG
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    Re: at 0 cya using trichlor to increase cya levels

    it's 128 oz, from stop & shop,
    anyone with experience using their generic brand, GUARANTEED VALUE?
    so its normal, my husband just went out to buy some more,
    1) 22,000 gallons
    2) DE filter
    3) IG
    4) vinyl
    5) Hayward pro-grid 2420, 1 hp, 96 gpm

    Also have Dolphin diagnostic 2001

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    Richard320's Avatar
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    Re: at 0 cya using trichlor to increase cya levels

    Quote Originally Posted by Hannah M
    it's 128 oz, from stop & shop,
    anyone with experience using their generic brand, GUARANTEED VALUE?
    so its normal, my husband just went out to buy some more,
    I'm not familiar with that one, but the Iris bleach my wife bought for laundry from Smart & Final is only 3%....no wonder it's cheaper!
    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!

  10. Back To Top    #10

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    Re: at 0 cya using trichlor to increase cya levels

    it's 6%, customer service at Stop & Shop called the company while I was there, and they confirmed that it is 6%
    1) 22,000 gallons
    2) DE filter
    3) IG
    4) vinyl
    5) Hayward pro-grid 2420, 1 hp, 96 gpm

    Also have Dolphin diagnostic 2001

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    Mod Squad Bama Rambler's Avatar
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    Re: at 0 cya using trichlor to increase cya levels

    Don't test the CYA again for a week. Assume it's in there and raise your shock level to match.

    Keep shocking. It's normal to use a lot of bleach in the beginning of a pool opening. Take a look at some of the threads with the pics of bleach bottles used during shocking. You'll see dozens and dozens of bleach bottles.
    Dave J. TFP Moderator
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