Please see the following article it is one of the best I have found concerning water softeners. You will need to use an iron filter before the water softener a water softener can only handle 1 ppm of iron. I personally like the Fleck control head it is the work horse of the industry. You will need to come to your own conclusions on what system to buy. If you are looking for an RO system please see the ROCONN web site.