Finally! Just backwashed at 1000 prior to adding more liquid bleach, and the dirty water was quite green, so that was reassuring as well. Seemed like it got a lot of stuff out of the water.That color change is a little more reassuring, but we'll see. Hat's-off to you for hanging in there.
moving very slowly you should try to vacuum some of that out to waste. don't run it through your filter. remember to check levels when you replace water.Finally starting to see some progress! Been continuing the SLAM. FC at 1000 today was 12. Water is slightly clearer and I can see a ring of dead algae in the middle of the pool.