On Sunday last weekend, I added a sequestering agent and started reducing the chlorine in the pool. On Wednesday, I added the absorbic acid and some more sequestering agent, with chlorine at zero, and switched to circulate rather than filter. The stains have disappeared but now the pool water is very cloudy. I have been running the filter nonstop since Wednesday (and have backwashed it plenty) and started producing chlorine again on Friday. There has been no appreciable difference in the cloudiness in about 2 days worth of filtering. I will check the balance today and post the numbers but is there anything that can be done to speed up the process?