http://www.nuvoh2o.com/free-in-home-water-test-kit.php

FREE CitraClear Dishwasher Softener Sample that will treat the water in your dishwasher using the same healthy formulation we use in our Salt-Free Water Softener systems so you get clean, scale-free dishes and dishwasher. Each small Dish Delight bag will treat several loads of dishes.