Well, this is very interesting for me as well. I find our iron filter and water softener do not really remove the iron very well. Our water is also high in sulfur and iron. It's not a problem for my printing as I currently print at a community darkroom, but it's hell in the bathtub! Do you guys find your softener removes enough iron to avoid the rust and black water occasionally and enough sulfur to remove the rotten egg smell? I find I have to drain the water heater pretty often. We had decided to get a 2500 gal. storage tank right at the well as we were told the iron/sulfur will precipitate out in that tank before the water goes to the house.
Geez, maybe we need a new softener?