I have a unique water quality problem. I have very aggressive water, which is eroding, and etching my porcelain, chrome, tile, granite and any other surface that is in contact with the air. After six months it has consumed many new fixtures eating completely through the enamel. I use well water with a PH of 6, hardness of 16, TDS of 450. It then runs into acid neutralizer using calcinate, and followed by a water softener using potassium instead of sodium. Through trial and error and others who are using the same water, I have come to the conclusion that the water turns aggressive only after being softened. Any ideas of how to have soft water without the aggressive tendency would be appreciated.