It got to 1 ppm. Bad, huh? In the back of my mind - I knew I should keep the shock up, but our summers are pretty brief up here in the U.P. and it was so hot, just wanted to cool off.
I shocked last night before dark and got it to 16ppm FC / .5 CC
This a.m. tested: 13.5 FC / .5 CC -- Adding a...