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Thread: New to testing with my TF-100. Not so sure.

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    New to testing with my TF-100. Not so sure.

    So, I have been using the Aqua strips until my TF-100 came in. They (aqua strips) have been coming back fine as far as the results go. I Just finished testing with my new TF-100 kit and I there is a big difference.

    My results...

    TA-120
    PH 7.2
    F.C. 5 ppm
    CYA 20
    Cl BR 2-4

    Hmmm.... I know that CYA is high along with that T.A. There is no way I can empty out half of this pool! Maybe I should wait to test in a few days? I did add stabilizer yesterday.

    <help>
    Barb
    St. Clair MI, 18,600 AG, Sand, Hayward Pro Series, Top-Mount, Model #S210T93S, 1+1/2-Horsepower Matrix Pump. Installed June-2013.

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    JasonLion's Avatar
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    Re: New to testing with my TF-100. Not so sure.

    CYA at 20 is not high. And while TA at 120 is a little high, it is not something you need to be all that worried about. Nothing you posted in any way suggests that you will need to replace water.

    All you really need to do right now is raise CYA to around 40 or 50. You said that you have already started doing that, so you are good for now.
    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

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    duraleigh's Avatar
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    Re: New to testing with my TF-100. Not so sure.

    They (aqua strips) have been coming back fine as far as the results go. I Just finished testing with my new TF-100 kit and I there is a big difference.
    What is the difference? Do you have those test strip results?

    We say it often, but Trust your own testing with the TF-100....barring a math error, the TF-100 is as accurate as it gets. The strips can be quite the opposite.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Patrick_B's Avatar
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    Re: New to testing with my TF-100. Not so sure.

    Did you add liquid stabilizer?
    TFP Moderator
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    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

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    Re: New to testing with my TF-100. Not so sure.

    Hi all....

    It appears I need to go back to pool school and refresh myself! I thought that CYA was too high (not sure where I read that number is too high). I added stabilizer yesterday (about a cup in the nylon). I just checked it, there is about half left. I should wait a couple days before retesting that correct?

    The strips said everything was good (right in the middle of all the fields).
    St. Clair MI, 18,600 AG, Sand, Hayward Pro Series, Top-Mount, Model #S210T93S, 1+1/2-Horsepower Matrix Pump. Installed June-2013.

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    Re: New to testing with my TF-100. Not so sure.

    This is a quote from another post about CYA.

    also once dissolved it can take up to a week to fully register on tests.
    12500 gallons, 24 foot round above ground
    Hayward Sand filter, Pentair OptiFlo 1HP 2-Speed pump

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    Re: New to testing with my TF-100. Not so sure.

    Wait a week to test the cya after it is all dissolved in the water
    18x52 intex ultra frame pool 6981 gallons, 1 HP LL pump with 19 in sand filter,BBB method,borax 50ppm
    leslies DPD test kit + fas-dpd chlorine test kit + borates test strips
    thru wall skimmer,hard plumbed with 2 returns 1 1/2 sch 40 pvc
    1 large fountain 1 inch sch 40 pvc,shut off ball valves on all

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    Re: New to testing with my TF-100. Not so sure.

    Did you use the pool calculator to get the proper dosage ( cya )? Because a cup in a 14600 gallon pool to raise cya from 20 to 40 just don't seen like enough.....Mike
    18x52 intex ultra frame pool 6981 gallons, 1 HP LL pump with 19 in sand filter,BBB method,borax 50ppm
    leslies DPD test kit + fas-dpd chlorine test kit + borates test strips
    thru wall skimmer,hard plumbed with 2 returns 1 1/2 sch 40 pvc
    1 large fountain 1 inch sch 40 pvc,shut off ball valves on all

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    Re: New to testing with my TF-100. Not so sure.

    For a 14600 gallon pool to raise cya from 20 to 40 it says to add 39 oz by weight of stabilizer per pool calculator
    18x52 intex ultra frame pool 6981 gallons, 1 HP LL pump with 19 in sand filter,BBB method,borax 50ppm
    leslies DPD test kit + fas-dpd chlorine test kit + borates test strips
    thru wall skimmer,hard plumbed with 2 returns 1 1/2 sch 40 pvc
    1 large fountain 1 inch sch 40 pvc,shut off ball valves on all

  10. Back To Top    #10

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    Re: New to testing with my TF-100. Not so sure.

    Quote Originally Posted by fast1971chevelle
    Did you use the pool calculator to get the proper dosage ( cya )? Because a cup in a 14600 gallon pool to raise cya from 20 to 40 just don't seen like enough.....Mike
    You are correct Mike. Not only was it not enough for a 14,600 pool, the calculation of water in my pool was incorrect. The installer said it was about 14600. I found a calculator and it is really 18600 (24 Round, 54 high, 6 foot deep end). And that puppy is full.

    I also finally figured out the pool calculator (go me )

    I can't thank you all enough with the help. Not only have you given answers, but how you get to the answers has made me take a second look at what I need to know about this pool.

    Barb
    St. Clair MI, 18,600 AG, Sand, Hayward Pro Series, Top-Mount, Model #S210T93S, 1+1/2-Horsepower Matrix Pump. Installed June-2013.

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