our well here in Texas, is high in chloride, due to the limestone, and high in Iron. The well is 350 feet,a submersable pump pumps it to an above ground storage tank, then it's gets pumped from there with a pressure pump to the pressue tank,,then on the house or whatever. BUT, back at the above ground storage tank,the water, as it comes from the well, goes in to the top of the storage tank, thru a peice of PVC, which has lots of small holes drilled in it. The PVC pipe goes from the side of tank, where the water comes in ,, and goes across the top of tank towrd the other side. And then, when the water is 'sprayed' out thru these holes in the PVC, the Iron in the water contacts the air as it passes thru it, oxidizes the Iron, and it settles in the bottom of the tank, and of course, it's drawn a few inches above the floor.......at least that's what they tell me. My wife says it.s still pretty hard. BUT, if this system in working,,it must be REALLY hard without it !