Madwil,
I agree, and for a newbie like myself – not seeing any additional decrease in the CC reading, and not real sure just how low it should eventually read, I was simply looking for a better way to test the CC. In my opinion, the 10 hr / overnight numbers are the most telling for both the FC (loosing <= 1ppm) and the CC at <= 0.5.

Gene
PS – I put the Polaris into the pool to help the skimmer sock clean-up a lot of the very fine debris – and together they are doing a great job! The pool water continues to clear very nicely (look wise). Many “thanks” for all your help!