Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: Finding optimal TA

  1. Back To Top    #1

    Join Date
    Aug 2016
    Location
    Warminster, PA
    Posts
    36

    Finding optimal TA

    So I started this season opening with my TA=150. Over the last 2 days, I have been incrementally adding Muriatic Acid to bring the pH down to 7.0-7.2, then aerating with my tile-line fountain jets. After my last addition of acid, I have a pH of 7.2 and TA=110. I'm planning to continue until my TA is down to 70-80, then turn off the aerating jets, and hold on any further additions of acid for a couple days to track my pH drift, while testing daily. Does this sound like a reasonable approach?

    And is there an optimal TA that pH will remain relatively stable? Will I be adding acid routinely throughout the season?

    As always, thanks in advance for any replies.
    Viking Coronado IG Fiberglass 13k gallons, Pentair Intelliflo VS Pump, Pentair Cartridge Filter (320 sqft), Pentair Electric Heat Pump (125k btu), Pentair Intellichlor IC20 SWG. TF-100 Test Kit. Located in SouthEastern PA.

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    20,296

    Re: Finding optimal TA

    Quote Originally Posted by sandman98 View Post
    So I started this season opening with my TA=150. Over the last 2 days, I have been incrementally adding Muriatic Acid to bring the pH down to 7.0-7.2, then aerating with my tile-line fountain jets. After my last addition of acid, I have a pH of 7.2 and TA=110. I'm planning to continue until my TA is down to 70-80, then turn off the aerating jets, and hold on any further additions of acid for a couple days to track my pH drift, while testing daily. Does this sound like a reasonable approach?

    And is there an optimal TA that pH will remain relatively stable? Will I be adding acid routinely throughout the season?

    As always, thanks in advance for any replies.
    Sadly, those elusive numbers are going to be different for every pool. You'll have to find out by experimenting. Someone might find that targeting 7.4pH leads to a constant battle, whereas leaving at at 7.6 will buy them 2 weeks without acid. A whole lot depends on how much aeration and what the refill water has in it.

    You will probably find that as you keep lowering pH and the TA drops naturally with it, that the intervals get longer and longer and the dose gets smaller and smaller. You'll know it when you reach a stable combination. There's just no way to predict where it will be. Regular testing and keeping a spreadsheet will help.
    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!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •