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  1. P

    Different Total Alkalinity tests

    Other numbers are quite close, TA is the only "problematic" one.
  2. P

    Different Total Alkalinity tests

    Yes, I do use a damp paper towel and wipe the tip of the bottle after each drop.
  3. P

    Different Total Alkalinity tests

    I have question about TA results. I finally got my TF-100 and that test shows TA 120, I also have BioGuard test (previous owners left that test behind) which gives TA 70, I have also results from 3 different pool stores (I know what do you think about their tests) but their results (from all 3...