Our well Water is VERY HARD. We even have a water softner and in our sinks and tub if we dont clean regularly we get major rust stains. When I was on the phone with spectra-pure he had me go in the back of my toilet where the water chamber is. I lifted the lid and everything in the back of my tiolet was stained rust. He hadme run my finger along the water line and tell him what it felt like. I did this and it was real slimly. He told me that I have a bacteria problem and my well needs to be shocked. I did call around and to have my well shocked its $1000. I would LOVE a rodi system. I am going to call around monday to a different company and see what they say. Plus my wells psi is only around 45-50 and that means I would need a booster which is around $250. Please if someone is using a unit with well water tell me if you like it. I dont like going to the LFS weekley for water would rather make my own. Im going for the 0TDS. Can I get that from an rodi unit?