Irene ruined the water chemistry and I needed to drain and do some repairs anyway. I was delayed in doing them so my pool turned into a small swamp. I drained most of the water out (left about a foot) and removed all debris. Finished the repairs and started refilling. We are o a well; part of the delay came because the aquifer apparently dropped below (or just at) the level of the intake (shallow well jet pump). I dropped the intake to about a foot above the bottom. We have a softener for the household water. Normally if I fill the pool with raw water the dissolved iron precipitates with sun light, I vacuum to waste and all is fine. This time the water didn't turn red. It's brown. I've been filtering for over a week with little change. Backwash shows some dirt being removed, but not as much as I would expect from the amount of discoloration. My first idea was that the algae simply grabbed the dirt and held it in suspension. But I've maintained high chlorine levels with no result.
Chemistry is: FC 7
Before I dump it and refill (softened water will take 2 weeks) are there any suggestions? Pic shows the color.