I just tested the water after vacuuming and re-filling. My FC level is 16. When I did the CC test I added the first set of drops, and if I were to glance just right at the sample, I could barely make out some pink. (10ml sample) I then added 1 drop of the first reagent, and the water immediately cleared up completely. So I would guess that my CC is .1 or .2 (If anything) I did a ph test and it showed 7.4, but I thought I had read that at high chlorine levels you can't trust the ph test. Correct?

Anyway, I am about to take the chlorine up to 25 ppm, and test first thing in the morning to see if it held.

Thanks

Tim