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Thread: Reading CH test results with TF100 kit

  1. Back To Top    #1

    Join Date
    Mar 2014
    Cloverdale, California

    Reading CH test results with TF100 kit

    Hi all,
    Question regarding reading CH test results using the TF100 test kit. Should I be mixing between drops? The directions don't indicate to swirl between each drop but reading on the site sounds like I should be doing it. The color changes to blue with red streaks during my test. Is the number of drops I count when the solution turns to blue even though there are still some red streaks/red bubbles in it? Or do I keep adding drops until it's all blue and I see no red without swirling it? It seems to be a tough test to read. I believe that my calcium level is high but want to make sure that I'm reading/doing the test correctly.
    Thanks for the advice!
    17,200 gal, IG plaster, built in hot tub w/ water fall, Pentair IntelliFlo VS-3050 pump, Pentair Easytouch 4 w/ integrated IntelliChlor iC20 salt cell, Solar Industries Solar Panels, Pentair Screenlogic, Jandy CL460 cartridge filter

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Reading CH test results with TF100 kit

    Yes, you want to be mixing between drops. Mixing continuously is even better, though many people find that difficult. Using a speed stir makes this test much easier.

    Blue with red streaks counts as long as the blue stays around for 15+ seconds.

    Additional directions are here
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