Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 6 of 6

Thread: My 1st pool store test since conversion from Bacquagoo

  1. Back To Top    #1

    Join Date
    May 2008
    Location
    Austin, TX
    Posts
    27

    My 1st pool store test since conversion from Bacquagoo

    I have a simple test kit at home (ordering TF-100 today), my basic numbers are
    Chlorine-5
    pH-7.2
    TA-190
    CYA- 30

    Pool store numbers they have "Pinpoint" Computerized Water Analysis System (not sure if that's good or not)
    FC-2.6
    TC-2.8
    CC-0.2 (because TA is high?)
    pH-7.7
    CYA-43
    TA-158

    They want me to add 3.5qts of muriatic acid to decrease pH. Does this amount sound right?

    I have a 12'x28' AG Doughboy (approx 7900 gal) with a Hayward 1hp pump and sand filter. The water is wonderful
    sparkling blue.
    12' x 28' Doughboy, partially underground, 9100 gal. Hayward pump and sand filter, Barracuda Zippy pressure side cleaner.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    I would not automatically believe their PH test over yours. Since both tests are within the acceptable range I would leave the PH alone.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    28,407
    Just for reinforcement, I am in complete agreement with Jason.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  4. Back To Top    #4
    If you do lower your ph, 3.5 quarts of acid is WAY too much for adjusting a pool your size. I would put about a cup of muriatic acid in and test again. You should find that you will drop the ph to 7.4 or 7.5 with two cups or less.
    19,000 vinyl pool, solar heat, .75 hp tristar, 48 sq ft de filter

  5. Back To Top    #5

    Join Date
    May 2008
    Location
    Austin, TX
    Posts
    27
    That's what I thought, TA didn't seem that high to be adding all that acid.
    12' x 28' Doughboy, partially underground, 9100 gal. Hayward pump and sand filter, Barracuda Zippy pressure side cleaner.

  6. Back To Top    #6
    Guest

    Re: My 1st pool store test since conversion from Bacquagoo

    Quote Originally Posted by JC45
    I have a simple test kit at home (ordering TF-100 today), my basic numbers are
    Chlorine-5
    pH-7.2
    TA-190
    CYA- 30

    Pool store numbers they have "Pinpoint" Computerized Water Analysis System (not sure if that's good or not)
    FC-2.6
    TC-2.8
    CC-0.2 (because TA is high?)

    TA has NOTHING to do with this! It just means that you might need to shock soon

    pH-7.7
    CYA-43
    TA-158

    They want me to add 3.5qts of muriatic acid to decrease pH. Does this amount sound right?
    I am sure that the amount of acid they want you to add is to drop the TA and NOT the pH since adding that amount should drop your TA about 50-60 ppm. This is a more "acceptable" TA (and if you are using liquid chlorine is still too high, IMHO.

    I have a 12'x28' AG Doughboy (approx 7900 gal) with a Hayward 1hp pump and sand filter. The water is wonderful
    sparkling blue.
    The difference in the ph tests between your home test and the one at the store is very possibly caused by CO2 outgassing from the sample you took to the store, which would cause the pH to rise. (THIS is because of the high TA!)

Posting Permissions

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