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Thread: Increase CYA, what use

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    Increase CYA, what use

    Hello all. I have been doing my own pool tests for about a month. I do have a salt water chlorinated pool about 12k gallons. I did my test today and decided to do a pool store test to compare. Results about average between both:

    Ph 7.8
    Alkalinity 60 ppm
    CYA 58ppm
    copper .3ppm

    these are the numbers that concern me. I know to lower PH I will use muriatic acid. To increase Alkalinity I will use baking soda but unsure what to use to increase CYA and decrease copper. I have been trying to stick to the BBB method, have yet to use borax but have been using baking soda. Any suggestions what to use for CYA and copper that would be great.

    I have already added added the baking soda today and plan on adding the 4-5 cups of muriatic acid tomorrow. Thanks in advance.

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    Mod Squad jblizzle's Avatar
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    Re: Increase CYA, what use

    Forget the average ... we do not trust pool store testing.
    Post up YOUR numbers

    Only way to lower the copper is to replace water.
    Use stabilizer to raise the CYA: Recommended Pool Chemicals

    With a SWG, I would not raise the TA at all.
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    Mod Squad tim5055's Avatar
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    Re: Increase CYA, what use

    Yea, we really try to shy away from the BBB name because folks feel,they gotta go out and buy all three. Seldom are,they used.

    Instead of an average, can you post your results please.

    pH could come down a bit and the only way to remove metals is to do a water exchange.

    As most folks in So FL have them, is your pool covered by a screen enclosure?
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    Re: Increase CYA, what use

    Pool is not covered with any screen enclosure.

    My numbers are:
    PH 8
    Alkalinity = 70PPM
    CYA = 60ppm

    My kit does not have for copper, so I cannot test that one. Since I added the baking soda already I will check what it reads tomorrow. As for stabilizer, any specific brand I should get or the one the pool store has is good enough? Thanks again

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    Mod Squad jblizzle's Avatar
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    Re: Increase CYA, what use

    Just look for near 100% cyanuric acid ... Walmart, Lowes, etc have it
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    Re: Increase CYA, what use

    Quote Originally Posted by jblizzle View Post
    Just look for near 100% cyanuric acid ... Walmart, Lowes, etc have it
    Looking for liquid or powder product? Would it be where they have the pool products? Thanks again

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    Mod Squad jblizzle's Avatar
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    Re: Increase CYA, what use

    powder is cheaper. by the pool stuff.
    Jason, TFP Moderator
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    Mod Squad zea3's Avatar
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    Re: Increase CYA, what use

    Liquid is usually only at the pool store and it is much more expensive than the granules. At the big box stores they keep it in the pool section. Look for stabilizer on the label.
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    Re: Increase CYA, what use

    Quote Originally Posted by hgiljr View Post
    Looking for liquid or powder product? Would it be where they have the pool products? Thanks again
    Yes, it will be with the pool stuff. Granular is cheaper. You can find liquid at a Pool Store but it is more expensive
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    Re: Increase CYA, what use

    amazon had 4lb granules for $ 13 last I bought.

    you can make liquid cya out of your granules by putting them in a sock tied off then submerged
    in a 1 gallon bucket of hot tap water...let it sit for 30-60 minutes then squeeze the now jelly
    like cya.

    you'll have it all dissolved in about ten minutes.

    be ready to vacuum any possible left over white granules as you pour it in in front of the deep end return jet.
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    Re: Increase CYA, what use

    Quick question... I was reading through the water chemistry kit handbook and it says CYA should be in ideal range of 30-50, being that I'm at 60ppm should I leave as is? I was going through what pool store test told me which for them ideal is 75-100ppm. Thoughts? Let me know. Thanks

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    Mod Squad jblizzle's Avatar
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    Re: Increase CYA, what use

    Forget what the pool store told you. You have to either follow their advice or ours.

    With a SWG, we recommend 70-80ppm.

    Please add your pool details to your signature.
    Jason, TFP Moderator
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    Re: Increase CYA, what use

    hgiljr
    ... 60 is a do-able level for your climate... it is what I have mine set to in order to buffer the chlorine loss during the day (and it works).
    You will have to maintain a bit of a higher chlorine level at that CYA level, but it does have it's advantages in a hotter climate.

    oops... sorry... didn't notice that you have a SWG.... bump your CYA.
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    Re: Increase CYA, what use

    Thanks. I'm all about going with what you guys say. Just the learning curve.
    is there a page here that gives the recommended ideal settings, which chemicals can be done together and which need to be apart, etc... Thanks again

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    Mod Squad jblizzle's Avatar
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    Re: Increase CYA, what use

    There are articles in Pool School.
    Jason, TFP Moderator
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    Mod Squad tim5055's Avatar
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    Re: Increase CYA, what use

    Yup, time for a little reading. Start with ABCs of Pool Water Chemistry
    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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