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Thread: New #'s with TF 100

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    New #'s with TF 100

    Since I'm still a novice with my pool and TF 100, I just want to share to see if I'm on the right track.

    Just did a partial drain/refill 2 days ago (for high CYA) so I'm getting things back in order.

    FC 1
    TC 1.5
    CH 280
    pH 7.4
    TA 90 (seems a bit low)
    CYA 70 - 80

    Temp 79 degrees


    In doing the calculator, I will now add a gallon of bleach 10%. The rest seems ok (besides CYA), but it is much better.

    Questions: my CYA is different today from yesterday due to lighting. Today I did full sunlight and got 80. Is full sun more accurate? Does it make a difference that the solution sat for about 5 min before going into test-tube because I was doing other tests?

    I feel like a chemist. DH just shakes his head. Thanks!
    New pool owner 3/2013 14,000 gal pebble tec, 7 ft jacuzzi with spillover into pool.
    FNS +48 DE filter, raypak2100 heater, Pentair whisper flo 1.5, Hayward pool cleaner. TF 100 test kit.

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    JasonLion's Avatar
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    Re: New #'s with TF 100

    Your FC level is way too low. With CYA at 70-80 you want FC between 6 and 11 and never below 6.

    You should do the CYA test in bright sunlight with your body shielding the view tube from direct sunlight. Using artificial light will usually result in a higher than actual reading.

    Having the CYA test sit for 5 minutes is fine as long as you shake it at the beginning, and again right before taking the reading. I wouldn't let it sit all that much longer than 5 minutes however.
    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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    pwrstrk's Avatar
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    Re: New #'s with TF 100

    + 1 what Jason said. Get that FC up or your going to have real problems like the green monster paying a visit.


    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Re: New #'s with TF 100

    Thanks Jason. I know FC is too low, that is why I just added chlorine. I will test again tonight.

    I think I will also recheck CYA just to be sure.

    Should I do anything about TA of 90?
    New pool owner 3/2013 14,000 gal pebble tec, 7 ft jacuzzi with spillover into pool.
    FNS +48 DE filter, raypak2100 heater, Pentair whisper flo 1.5, Hayward pool cleaner. TF 100 test kit.

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    pwrstrk's Avatar
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    Re: New #'s with TF 100

    I would leave TA alone. Sometimes people worry too much about the TA.


    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  6. Back To Top    #6

    Re: New #'s with TF 100

    Thanks Jeff!
    New pool owner 3/2013 14,000 gal pebble tec, 7 ft jacuzzi with spillover into pool.
    FNS +48 DE filter, raypak2100 heater, Pentair whisper flo 1.5, Hayward pool cleaner. TF 100 test kit.

  7. Back To Top    #7
    Smykowski's Avatar
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    Re: New #'s with TF 100

    Quote Originally Posted by pwrstrk
    People ALWAYS worry too much about the TA.
    FTFY
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
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