Not sure where to put this so I'll just leave it here. Over the weekend someone forwarded me a facebook post. The person claimed that their pool was tinted green from iron and that adding more chlorine made the problem worse. They swore adding magic erasers to the skimmer was clearing their water by getting the iron out. Anyone have any idea what was actually going on in that pool as I do not believe anything (within reason) can get iron out of the water?