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  1. revitup

    CYA test direction differences

    I don't really struggle to make a call on the level on a given reading, but day to day, my observation could vary +/-10. I don't care all that much. Long as it's in the 70-90 range I'm good. I chlorinate to meet the higher requirement.
  2. revitup

    CYA test direction differences

    Wouldn't it be easier to just use the Taylor CYA 50 standard to calibrate your dot sight picture?
  3. revitup

    CYA test direction differences

    I find it much more convenient and just as accurate to perform the CYA test right at the garage workbench where I perform all the other tests. I used the Taylor 50ppm standard CYA test solution to establish a consistent 'disappearing dot' sight picture with the 50ppm test, barely visible at 40...