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Thread: High TA

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    High TA

    So this year I am converting to SWG. I've spent weeks here reading about it, and today am finally ready to take the plunge so to speak.

    Pool is cleaned and empty. SWG is hooked up and pool filter hooked up (obviously lol).

    I just did a test on my fill water and these are my numbers:

    FC=5
    PH=7
    TA 220 (whoa!)
    CH 60 ppm
    CYA= 0

    So from the SWG pool school guide, my FC is acceptable, PH needs to come up .5, CYA needs to come up 70, and my TA needs to go down to 60-80.

    So I am reading how to lower my TA and I am thinking this is going to be a fun as heck project, heavy sarcasm.

    My question is, since my PH is already at 7 i need to aerate. Will filling the pool up (5061 gallons) contribute in any way to aerating? I mean, I can throw a kid in there to stomp and play for a bit too while it's filling up.

    How long is it going to take to get this TA lowered? I'm frustrated, but need to go back, I don't think my TA was ever this high but I could be mistaken. It seemed to me I didn't test this one very much??

    Also, so do I not add the salt at this time? I'm worried about FC getting too low and getting algae and getting behind.

    I hate to admit but I am completely beyond confused at this point. I thought I had it all down pat, but obviously not, and I don't even know where to begin now.
    Intex Ultra Frame Above Ground Pool 16x48
    with a Filter Cartridge

  2. Back To Top    #2
    JasonLion's Avatar
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    Re: High TA

    You do want to lower TA, but there is no rush to do so right away. In many cases it is fine to simply lower the PH to 7.2 each time it gets to 7.8 until the TA comes down to where you want it.

    The only thing you really need to deal with right away is starting to raise CYA. Your CYA level probably isn't really zero, just too low to measure, so don't add too much just at first, but do get it up to at least 30.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Mod Squad jblizzle's Avatar
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    Re: High TA

    Just wanted to add that I would not worry about raising the pH chemically, the high TA, SWG, aeration from filing and kids playing should raise it pretty quickly.

    Definitely get some CYA in the water.
    Jason, TFP Moderator
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    linen's Avatar
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    Re: High TA

    Quote Originally Posted by want2swim
    Will filling the pool up (5061 gallons) contribute in any way to aerating?
    Any aeration you can get like using a sprayer nozzle while filling above the surface will help raise ph.
    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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    BoDarville's Avatar
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    Re: High TA

    want2swim:

    The first thing I would do is get your CYA up to the 60 -80 ppm range for your SWG as you have already realized. Since you are starting with a CYA of 0, I would use 100% stabilizer to bring your CYA up. You can fill an old sock with the granular CYA stabilizer and either place it in the skimmer or hang it in front of a return. The handle on an old bleach bottle filled with water will serve as a sturdy yet portable anchor from which to to hang the sock so it dangles in front of the return.

    Since your pH is a bit lower than we would recommend, I wouldn't try to lower the TA right now since that would also lower your pH and you definitely do not want to do that at this time. In fact, I would bump up your pH to at least 7.2. The best way to do that is by aerating and getting in and going swimming. TA indicates the water's ability to buffer changes in pH. Typically, low TA levels tend to contribute toward fluctuations in pH while high TA usually causes pH to drift up. However, the latter situation is not currently happening in your pool. I would focus more on managing your pH over TA. I would still test both (pH several times a week; TA at least once a week) just to keep an eye on things. It is quite possible that once more people are swimming in the pool that the pH may begin to drift up. Then you would lower the pH which would bring TA down with it.

    When filling, having your fill source (hose, sprayer, etc.) above the water surface will also provide some aeration of the water.
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    Richard320's Avatar
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    Re: High TA

    Sounds like my fill water. Well, except your CH is a lot lower.

    My bright idea: fill a sock with CYA, tie it to the end of the hose, and let the hose dangle above the pool so you get some aeration when it's filling and the CYA can start dissolving without laying directly on the vinyl.
    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!

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    Re: High TA

    THis is why I LOVE this place! I didn't hang around much last year because I got to know my pool pretty well and could use pool school or search if I needed help

    CYA is definitely the first thing I wanted to get done, and I knew that would be pretty low. I put in the calculator I wanted to get to 40 from 0 and it said 21 oz. I am out from last year, so I need to get that when I go get the salt. Great idea of tying to the hose!!

    We have two hoses, but they draw off the same water line so I'm not sure it would be best to run one with sprayer and one without. I do believe that I will put the CYA in sock on end of hose with sprayer nozzle and also let kids splash around in there.

    I did forget to ask however, is the salt okay to put in now? Also, should I pick up some MA now, or just wait and see how it goes? I have lo n slo? and PH down from a few years ago (2011) not sure if it's still okay to use or do I need "fresh"?
    Intex Ultra Frame Above Ground Pool 16x48
    with a Filter Cartridge

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    Re: High TA

    I guess one more thing.

    My pump is apparently the new model. I bought it on clearance at target, well it was mismarked for $15.41. I got it January 2012 but didn't want to mess with it. So it has the copper bars and also generates less chlorine. I researched and lots of people said it's easy to disconnect the bars, but I still can't find a diagram of where I disconnect. With a family of towheads, we definitely want to avoid that copper if at all possible! I fought green hair after memorial day party last year, not dealing with that again this year!

    So is there a proper diagram that I'm missing out here?
    Intex Ultra Frame Above Ground Pool 16x48
    with a Filter Cartridge

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    Richard320's Avatar
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    Re: High TA

    Dry pool chemicals will keep for years if they're kept dry. Just study the ingredients so you know what you're putting in. Test the fill water so you know what you're likely to need.

    Hold off on adding the salt until it's up and running and balanced using bleach. And check out the highlighted part here since you have kids.
    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

    Re: High TA

    I absolutely love that idea, and that will be so cool for them, especially the one who hates going under water!

    So I'm done scrubbing the walls again with my last gallon of bleach, rinsed walls, washed the ladder really well and weed eated around the pool. Ready to go get my bleach, stablizer, and salt (for future). Hope walmart doesn't freak when I buy a lot of bleach LOL!
    Intex Ultra Frame Above Ground Pool 16x48
    with a Filter Cartridge

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    Re: High TA

    Walmart has actually gotten somewhat used to TFPers buying lots of their bleach. I think that a thread on here last year pointed to the fact that some stores were actually putting bleach next to the other pool chems on the shelves.

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    linen's Avatar
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    Re: High TA

    The copper stage is the last plug before water leaves the swg. You can just unscrew the nut and pull off the plug.
    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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