My first real test of BBB. We had a 30 person pool party yesterday for 7 hours. Kids, adults; the whole works. All I did was bump up my FC to +3 of it's normal level the night before. By the end of the party, I was a bit concerned. The pool looked cloudy, there were food particles and other junk all in the water. Ick! When everyone was out of the pool, my FC had dropped to 4.5, which is at the low end for my CYA, but still okay. I bumped up the FC to 6, and let the filter run all night. This morning, I awoke to this! The pool was right back to crystal clear. All readings are ideal. Go BBB!