Monday afternoon, home from work and a curious development..

The milky cloudiness has dissipated, and viz improved from 16" to 23".
The chlorine level REALLY dropped off since last night, from 12.5 down to 5.5 now, 22 hrs later.
The color has changed to a typical green algae color. But the clarity is improving.

So for the moment I backwashed (it came out pretty dirty) and I'm going to bring it back up to superchlorination level (about 15) by adding just under 2 gallons of bleach. I'm discontinuing the dichlor for now bc it seems to be driving the CYA up higher than I'd like. (100 ppm).

Also aerating for a bit to bring the pH up a little. It's steady at 7.0.

More to follow.