I added a typical water softener to my well supply and it greatly improved my washes. Practically no more water spots! Of course, a lot depends on the supply in your area. Your water might not need softening or anything. You might want to get a water test done to determine the makeup of your water. Wether it is acidic, alkaline, etc. and go from there. Most places that sell water softeners will do a test for you for free if you take a sample in to them.