Well, it appears I successfully jinxed myself. This stuff is resilient. After having read the debate back and forth on polyquat 60, I let the CL drop a little and put in 2 quarts the other evening to see if that would clear up the remaining "stuff". I can safely say that the quat did squat. In fact, the following morning there seemed to be more "stuff" than in previous mornings.

So back to the tried and true (yes, I should've listened better) of bleach and more bleach. We put in enough this morning to get back to the 25ppm we'd been running. I ran a test this evening to see if I needed to add more and, just for the fun of it, did a CYA test also. It came out at 50 (you keep going until you can't see ANY of the black dot, right?). How is this possible???? It had been testing regularly in the 80-90 range. The PH seems to have dropped a bit also, but not much.

TC - approx 25
PH - 7.3-7.4
CYA - 65
TA - 120