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Thread: First tests... TA very high

  1. Back To Top    #1

    Join Date
    Jul 2016
    Akron, OH

    First tests... TA very high

    I'm new at this so please bear with me... just set the pool up a week ago. Finally did the first round of testing and I'm a bit surprised at the TA level, so I'm wondering if it makes sense to those of you have more experience...

    TC = 0
    pH = 8.2 (could be higher, this is the max on my tester)
    TA = 250 ppm
    TH = 270 pm

    I didn't do the CYA test because I read that since I just filled the pool, the test would be a waste.
    We have well water, and to date (over the past week) I've added a total of 3.5 cups of household bleach (8.25%). Currently the water is clear and looks inviting. The weather here in northeast Ohio has been cooler the past several days so we have not been in the pool (was in it 2 x last weekend).
    I used the pool calculator and it tells me to add 11 oz of bleach -- easy enough. I've read that I need to add muratic acid (which I will have to buy), Is that the best ingredient to use?

    My question is about the TA & pH readings. What would be the recommended next step(s)...?
    1700 gal (12x30 Intex AG), original pump w'cartridge filter. Installed 6/25/16, HTH 6-way Test Kit; well water.

  2. Back To Top    #2

    Join Date
    May 2015
    Gaylesville, AL

    Re: First tests... TA very high

    yup... MA is what you need... it will drop both your Ph, and TA. Lowes is the best place to buy it (it is in the paint section)
    14600 gal Intex 24' Round 52" deep AG Pool (Heavily Modified)
    200lb sand filter w/2 speed 1.5/0.5hp pump
    Stenner 45MHP10 Liquid Chlorine (well... bleach) Injector. Borates added.
    K-2006 test kit w/Speedstir

  3. Back To Top    #3

    TFP Guide
    AimeeH's Avatar
    Join Date
    Apr 2012
    Columbia SC

    Re: First tests... TA very high

    Welcome to TFP

    You do want to get some CYA in there as well

    But on your TA/PH question, yes, use muratic acid to lower your PH to the mid 7's. If it stays there, don't mess with TA. TA is a buffer for your PH and hopefully by just adjusting PH as needed the two (TA and PH) will find their sweet spot where your PH doesn't change much.
    18*36*23 true "L" vinyl IG 29,000 gallons. SWG. TF-100 test kit.

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