total alkalinity

  1. J

    Correct Alkalinity Range

    I've been reading up on pool chemistry and the recommended ranges and the Total Alkalinity range seems all over the place. This site recommends 50-90 ppm (the lowest by far I've seen on any site), most recommend 80-120 ppm, another prominent resource for pools recommends 100-150 ppm, and the...
  2. D


    Hello, Last year I struggled a little bit with aeration. We have a 14000 gallon above ground pool at 24' round. With that being said there were times I needed to lower TA. I believe I read baking soda was a bad method as I think I remember people saying it can cause cloudy water. With that said...
  3. P

    Total Alkalinity and pH in a salt pool

    I recently filled a pool and have been trying all week to balance the chemistry. I make my own daily tests with a Taylor FAS-DPD kit and I confirm my test results by taking water samples to Leslie's. I have managed to get all the chemistry within recommended range except for pH and Total...
  4. N

    Please help on what to do to balance water after algae outbreak

    Hi, After owning the pool for several years, I thought I know it all but apparently I got things wrong. Long story short, we've been having out of control algae due to very high CYA (129) so we did as suggested by replace more than half of our pool water with fresh water and shock while doing...
  5. Fbskiracer

    Adjusting TA/pH with Borate

    I added borates to the pool last year and while the TA was a little low, when I opened it this year it was super low. I was pretty happy and everyhting was stable. When I opened this week, after 3 days of filtering with shock, the water is crystal clear. I just wanted to double check before...
  6. T

    TA Test - TF-100 vs. Pool Store

    New pool owner here and I'm testing both using my TF-100 test kit and a once-monthly drop by the pool store for testing. I am usually spot on so I will likely discontinue the pool store testing. But I have one question on the Total Alkalinity test. TF-100=75 Pool Store=59/72 The pool store...
  7. D

    Filling a 9’ round dough boy from my hose and TA is 250?

    Doing a fresh fill of my pool and testing the water while it’s filling to see where I’m at. So, I’m basically testing the hose water. Most levels are about where I’d expect, but my total alkalinity tested at 250 ppm. I saw some comments on here about TA not mattering and not try to adjust it but...
  8. L

    How long does it take to reduce TA?

    Hi all. I'm constantly adding muriatic acid to our pool to reduce the PH. That being said, since 5-30-21 until today, I've gotten the TA from 180 to 90. It's taken me about 15 gallons of acid to get here. Is that to be expected, or is something wrong? PH 7.8 Chlorine 2 TA 90 CH 480 CYA 35...
  9. matthewsunshineflorida

    PH 8.0 - OK if CSI Good?

    TLDR: pH rises from 7.2 to 8.0 in 60 hours, but @JoyfulNoise said he is able to go 10-14 days without adding acid due to proper TA and Borates. I'm wondering if I should lower my TA a bit, increase my CYA a bit, and add borates? Hey all, so appreciate your help both directly and indirectly...
  10. Jmckinnon

    Total Alkalinity question

    My TA is 130….my pool math calculator says to lower TA, reduce ph to 7.0-7.2 with acid and then aerate to increase PH. My PH is 7.2.. my question is the acid; is it muriatic acid I use? If so how much would you suggest I put in? My readings are 4 FC 1 CC 5 TC 200 calcium 130 TA 12 CYA...
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    Homemade aerator
  12. H

    TA high

    Hi can I ask when you say stabiliser, do you mean stabilised chlorine? I can’t find “stabiliser” I’m in the Uk. my pool is above ground. my readings are below. I just wanted to check, that I’m supposed to add ph reducer? (Got a bottle left from last yr) And that’s all? many thanks H
  13. P

    TA Readings extremely high

    TA Readings are extremely high so it seems. Brand new inground 13000 gallon SWG pool just opened several days ago - the water temperature is still below 60 degree so did not add any salt yet. Performed the test for the first time. (Test Kit - Rainbow Model 78) because that's what came with the...
  14. Hchang

    pH and alkalinity question

    I have a 17,500 gallon Gunite chlorine pool that was finished in October of 2020 (Central Texas). It has an attached spa with overflow waterfall and a heater. I’ve been using the TFT-100 to test and manage chemicals myself for the past couple of months. I have the pH probe (calibrated) that...
  15. TBK

    Total alkalinity test question

    I have a question regarding the total alkalinity test in the TFTestkit. At the R-0009 one drop at a time (continue until color changes to red). Is that until it stays red or when it first changes to red, when using the Taylor speedstir, it turns red around 12 drops but then changes back to...
  16. NE Surfer

    High TA but pH is Good

    Hi - overall the first season with the permanent AGP has been great, thanks to the advice from TFP! My TA numbers have consistently been 100 to 110. My pH has been fine at 7.8. Should I bring the TA down even though my pH is in range? I understand I can lower the TA and then aerate to raise...
  17. P

    High dry acid usage

    Hi Pool experts :): I have a quartzite surface pool (25K gallon). I am keeping my Alkalinity between 60-80. The problem I have is that I feel like I am adding a lot of dry acid every month to the pool. I actually finish 50 lb of dry acid every month. I am not sure if this is too much, or this...
  18. jorgeL

    Can't bring down pH and TA

    Hello all, I am using 10% liquid chlorine for sanitation and I add it every week and since my pH (7.8) and TA (125) is higher than I would like I also add 14.5% muriatic acid to bring those down. I thought that I would only had to add acid once and when my pH and TA levels were to a desirable...
  19. E

    Recommended TA levels for saltwater pool

    I was wondering what the recommended level was for total alkalinity for a saltwater pool. My level has increased from about 80 to 110 in the last month or so. I have heard that higher levels of TA can cause PH to rise more quickly.
  20. E

    Adapter between return outlet and DIY aerator?

    Hello all, I'm looking to build a DIY aerator like this, but how do I find the adapter to connect the plastic piping to the return outlet please? Many thanks for your time!