Back after a long day at work - water held its FC pretty well. I put in 121 oz's right before I left for work and my wife put in 121 oz's at lunch. Right now it is at 17 FC - 1 above my target. Water might have been a little more clear but hard to tell - maybe an extra inch depth of clarity? I brushed it really well and threw in the Kreepy Krauly. After a couple hours it took the PSI from 22 up to 30 so I backwashed. I had not intended to let the psi get the high but we had to run errands. Backwashed...rinsed...and am going to leave the Kreepy Krauly in for a couple hours til I hit the bed.