I have a water softener. After I did my maintenance on it my wife commented on the soap being hard to remove from her skin in the shower. She says it feels almost slimy. When I talked to the guy after it was installed years ago he said that is the way your skin is supposed to feel. He also mentioned that typical soaps will leave residue with good quality water. I think my hair and skin feel better since I installed the softener. And since I serviced the conditioner they feel better as well. I am wondering what are the ideal water parameters in a home. Since the installation of the water conditioner I have set it to run twice as often because of what I think is iron build up on my shower heads. I hoped it was residual iron in the plumbing that would eventually subside and I could set it back to the installation settings. Other then add mineral to the conditioner yearly I add salt to the brine tank with iron out per the directions. Also can I use my tf-100 to test the water to see if it is working properly?