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Thread: Should I increase my TA?

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    Question Should I increase my TA?

    I'm new to this forum and my pool is new as well. Yesterday my pH was 8.2 and TA was 70. I used pool math and added the recommended dosage of Muriatic acid; tested again today but there was no difference. I added more acid than the calculator recommended and after some hours my pH had dropped to 7.2 and TA 60.
    The rest of my test results are:FC 6ppm, CC 0, CYA between 40 and 50 (2 tests), CH 850. (I don't know why CH is so high, my tap water is 75).

    Should I increase my TA using baking soda as recommended by Pool Math, to keep my CSI above -0.6. to avoid problems with the plaster? Is the CSI calculated by pool math accurate?

    This site has helped me a lot in getting started. Thanks to all of you who keep this forum active.
    12.5K gal, IG plaster, Overflow Spa, 2.7 Hp variable speed Jandy E pump, JS 100-SM Jandy sand filter, Zodiak MX6 (builder installed), purchased Dolphin M500. SWG not yet installed, treating as a chlorine pool and spa for now. TF100 test kit. Plastered and filled Sep 2015.

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    Mod Squad jblizzle's Avatar
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    Re: Should I increase my TA?

    Leave the TA alone and just keep the pH a little higher to keep CSI balanced.

    The lower TA should keep the pH from rising as fast.

    How are you chlorinating?
    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: Should I increase my TA?

    I have just taken over the maintenance from pool builder who was using tablets. I haven't had to add chlorine yet but will be using Kemtek liquid chlorine.

    I can increase the pH using borax then. So it wouldn't matter that my TA is below the 70 to 90+ range?
    Thank you.
    12.5K gal, IG plaster, Overflow Spa, 2.7 Hp variable speed Jandy E pump, JS 100-SM Jandy sand filter, Zodiak MX6 (builder installed), purchased Dolphin M500. SWG not yet installed, treating as a chlorine pool and spa for now. TF100 test kit. Plastered and filled Sep 2015.

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    Mod Squad tim5055's Avatar
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    Re: Should I increase my TA?

    Yes, don't chase a magic number with TA Mine really likes 50-60.
    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: Should I increase my TA?

    Thank you!
    12.5K gal, IG plaster, Overflow Spa, 2.7 Hp variable speed Jandy E pump, JS 100-SM Jandy sand filter, Zodiak MX6 (builder installed), purchased Dolphin M500. SWG not yet installed, treating as a chlorine pool and spa for now. TF100 test kit. Plastered and filled Sep 2015.

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    Re: Should I increase my TA?

    I have just taken over the maintenance from pool builder who was using tablets. I haven't had to add chlorine yet but will be using Kemtek liquid chlorine.
    If your tap water is truly 75 for, CH, then the PB was probably using Cal-Hypo 3" tablets to have such a high level and/or calcium scaling.

    CH 850. (I don't know why CH is so high, my tap water is 75).
    Adding washing soda, soda ash or borax will also raise TA. Maybe aeration to get you PH up and leave TA alone. There are "aeration devices" that attach to the return jets, like waterfalls that are relatively inexpensive. I spent all summer lowering TA, and hopefully next season, everything will stabilize.

    Amazon.com : Splash-A-Round Pools SEC385 Waterfall Spray Pool Fountain : Swimming Pool Pump Accessories : Patio, Lawn Garden

    A bit more expensive than Borax and I may bite the bullet next year so I can speed the process up for myself.
    14,700 gallons IG Pool Vinyl Liner - Octal Circulation System
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    Re: Should I increase my TA?

    Thanks Catanzaro, I guess running my spa overflow or waterfall at full capacity should achieve the same purpose right? I have let it run for a full day, will check the pH this evening to see if it worked.
    12.5K gal, IG plaster, Overflow Spa, 2.7 Hp variable speed Jandy E pump, JS 100-SM Jandy sand filter, Zodiak MX6 (builder installed), purchased Dolphin M500. SWG not yet installed, treating as a chlorine pool and spa for now. TF100 test kit. Plastered and filled Sep 2015.

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    Re: Should I increase my TA?

    Quote Originally Posted by Blessed View Post
    Thanks Catanzaro, I guess running my spa overflow or waterfall at full capacity should achieve the same purpose right? I have let it run for a full day, will check the pH this evening to see if it worked.
    You have to experiment with your aeration devices. Yes, it will increase PH, but by how much? Only time will tell. The longer the run time, the faster the rise. PH may not rise as fast as one may think. I know my 4 rotating heads that break the surface for 12 hours straight will rise the PH from 7.5-7.6 to 7.8 almost every 4 days. A lot of pools keep a steady PH at lower TA levels then the recommended range of 70-90, which is perfectly fine. You have to find your sweet spot.
    14,700 gallons IG Pool Vinyl Liner - Octal Circulation System
    Hayward Pro-Series 350 LB. Sand Filter Model # S270T - 2" Plumping
    Hayward CL2002 Chlorinator - Hayward Super Pump 2 HP Model # k48m2n111
    Hayward AQR9 SWG 25K Salt Cell & TF-100 Test Kit + Speed Stir
    Gulfstream HE125RA - 117K BTU Heat Pump - Date of Build is 11-2013

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    Re: Should I increase my TA?

    Yay! My pH is now 7.5, TA still at 60; I have stopped aeration. One more thing; if the pH rises any further (which from all I've read on here, it does in a new pool), if I add acid to bring it down, will my TA not continue to go down?
    12.5K gal, IG plaster, Overflow Spa, 2.7 Hp variable speed Jandy E pump, JS 100-SM Jandy sand filter, Zodiak MX6 (builder installed), purchased Dolphin M500. SWG not yet installed, treating as a chlorine pool and spa for now. TF100 test kit. Plastered and filled Sep 2015.

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    Mod Squad jblizzle's Avatar
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    Re: Should I increase my TA?

    The TA will drop anytime you add acid to lower the pH. If it gets too low then just add a little baking soda.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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