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Thread: High CYA problem

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    High CYA problem

    I am new and have high CYA and of course the same green algae that everyone else gets. Apparently it is due to using tri-chlor tabs. My question is if the tabs keep adding CYA and the CYA never dissolves (everybody says you have to drain and re-fill) why would anybody ever use tabs? This makes no sense to me.

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    Mod Squad tim5055's Avatar
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    Re: High CYA problem

    I think you have identified the center of pool store profits. Pool owners want ease of use and most don't want to learn how the water chemistry works. What could be easier than float a few pucks, toss in some shock on the weekend. Oh, you have alge, buy this magic potion. That didn't work, try this. You get fed up with store 1, you move on to store 2.

    You really get fed up with being pool stored, you find TFPC.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: High CYA problem

    So none of you smart people on this forum use tabs with stabilizer? I guess you could use a small amount of tabs but mix in liquid chlorine also to keep the stabilizer low enough as the water evaporates and you slowly add more water?

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    Mod Squad jblizzle's Avatar
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    Re: High CYA problem

    CYA does not evaporate, it just builds up. You have to physically remove the water through splash, backwash, etc.
    Jason, TFP Moderator
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    Re: High CYA problem

    I wasn't smart enough to deduce the relationship between CYA and FC on my own, but a light went off when I discovered it through this forum. Now my pool is trouble free, good luck with yours!

    21K gallon, plaster, 1hp Hayward MaxFlo pump, Hayward 244s sand filter, 3/4 hp Halcyon PB4-60Q booster pump, Polaris 280 cleaner.

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    Mod Squad tim5055's Avatar
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    Re: High CYA problem

    Quote Originally Posted by astuber View Post
    So none of you smart people on this forum use tabs with stabilizer?
    Pucks/tabs have their place. Keep control of your CYA and they can be used for vacation maintenance. Or, use tabs for that final little bit of CYA to get to your goal.

    Your pool is not a Ronco Showtime Rotisserie Oven. You can't set it and forget it.

    I know, too much late nite TV.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Coonspool's Avatar
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    Re: High CYA problem

    Quote Originally Posted by astuber View Post
    I am new and have high CYA and of course the same green algae that everyone else gets. Apparently it is due to using tri-chlor tabs. My question is if the tabs keep adding CYA and the CYA never dissolves (everybody says you have to drain and re-fill) why would anybody ever use tabs? This makes no sense to me.
    Tabs have their place and use, but they are not recommended for regular routine maintenance of your pool. Far as I have gathered, they should only be used while on vacation or extended time away from your pool. I also wondered why they were made, seems like they could make just straight out chlorine tabs, but I guess that would be too much of a financial loss for the pool stores.

    Quote Originally Posted by astuber View Post
    So none of you smart people on this forum use tabs with stabilizer? I guess you could use a small amount of tabs but mix in liquid chlorine also to keep the stabilizer low enough as the water evaporates and you slowly add more water?
    As one of the dumber ones on this forum....I don't use tabs....
    21' x 54" AGP Heritage 12,000 gallons.
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    My SLAM Another swamp, is it worth it? Drain or gain?

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    Beens's Avatar
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    Re: High CYA problem

    I actually have 2 tabs in a floater right now!

    First time I've dragged that thing out since last June or so.

    My pool is small and since I haven't added any stabilizer at all since last year and I have backwashed a bunch of times this year...mine actually dipped below 30. I'm trying to bring it up to 40ish and I didn't feel like buying anything else so I dug up my old container of tabs and stuck 2 in my crusty old floater.

    If my calculations are correct, each one will raise my CYA 5... plus there was a little sliver left in there from last year (Amazing since the floater has been sitting outside in the elements all year!) I figure all together I should get to 40.

    Don't get me wrong....seeing that floater in the pool every day makes me nervous! Those things take forever to dissolve. Now I know why people just buy stabilizer. lol
    18' x 48" (42" water depth) Intex Metal Frame 6,700 Gallons
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