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Thread: Testing CYA w? TF-100

  1. Back To Top    #1

    Join Date
    Jul 2007
    Location
    Katy, TX
    Posts
    188

    Testing CYA w? TF-100

    UGH! UGH! UGH!

    Okay, got the test last weds the 25th and tested. CYA was not registering (filled the tube all the way to the top and could still see the black dot - clearly). Added CYA that night. Tested agin this afternoon and once again it is not registering the CYA. Their was a slight difference in the water in that it was a little cloudy but I was still able to see the black dot. What should I do??? BTW -

    Clean and clear water
    FC 7
    CC 0
    TC 7
    pH 7.6
    T/A 90
    CH 210
    CYA 0
    temp 89

    **last week I added CYA, CH, MA and Baking soda (not in the same day) to tweak my numbers on the other stuff.

    Please help, I do not know what to do or maybe I am a moron and not doing the test right although I am following all the instructions. UGH!
    ~Andrea

    24,000 IG with spa and 4 ton waterfall. Equipment: Pentair 520 Clean & Clear, Pentair VS+SVRS Intelliflo, Pentair Whisperflo 2 HP, Polairis Cleaner, Intellibrites, Pentair Rainbow 320 in-line Chlorinator, Pentair Easy touch 8 wireless and spa side remote.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    How much CYA did you add and how did you add it?
    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

    Join Date
    Jul 2007
    Location
    Katy, TX
    Posts
    188
    I added 3.5 lbs in a pany hose and placed in the skimmer. I did it in the evening and ran my pool all night. By morning the hose was empty.
    ~Andrea

    24,000 IG with spa and 4 ton waterfall. Equipment: Pentair 520 Clean & Clear, Pentair VS+SVRS Intelliflo, Pentair Whisperflo 2 HP, Polairis Cleaner, Intellibrites, Pentair Rainbow 320 in-line Chlorinator, Pentair Easy touch 8 wireless and spa side remote.

  4. Back To Top    #4
    Guest
    CYA can take up to a week to dissolve, even if non is left in the panythose. Give it a full week and retest. 3.5 lbs should raise 10000 gallon to between 30-40 ppm so if your pool is acually a bit bigger than you think it might not be enough to fully register.

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