I'm 48 hours in and looking pretty good with only 1 ppm loss of chlorine overnight.
There are a lot of particles in the water I'm measuring. I added 1 cup of cellulose fiber thinking that might catch some of that.
Visibility is about 18-20" down. I've brushed and vacuumed as long as I could see black stuff come up (since I can't see down there.)
Am I on the brink of a breakthrough? It seems like this same Aqua green color has been same for 18 hours.