I accidentally left my well water run into my pool overnight several nights ago. I awoke to a mess of brownish green metallic water. I immediately treated the water with about 70 ounces of Hydroxyethylidene Disphosphonic Acid Acid (HTH Metal Control). I ran the pump 24/7 and within hours things were getting better and as of last night my pool was once again crystal clear. I shut the pump off. Today I get home from work and Whamo, the metal is back and the pool looks like crap. What can you offer up for help? I did put towels in the pool and a washcloth in the skimmer, all grabbed a bunch of iron. When I backwash, lots of brownish water is removed.

TC 4.0
FC 4.0
PH 7.8
CYA 80
TA 130