We have an above ground pool. It's an 18 by 52. We are on WELL water. We filled it and it was nice and clear. Then I put Shock and Swim in it and its now green.

You can still see through the water but its slightly green.

We have pumped and pumped it and changed the filters. The filters are turning brown so we are assuming there is a lot if iron ore in the water. We also have a high amount if sulfur in our water.

Where do I start on trying to clear this?