To find out more information go to www.wqa.org. They have a forum where you can ask and get answers to your questions. I have installed a McClean Intellis water softner with a Sulox sulphur removal system. Both have worked very well. Total cost for both systems was under $2500. You can find more on the McClean line from a plumbing supply store. These units are not sold in stores like Wal-Mart, Home Depot etc. Whatever you do make sure you talk to other people in your area who have dealt with anyone you hire to help with your problem. There are a lot of unqulified persons in an unregulated industry.