I am on well water and even on a good day my softened water leaves spots. Drying my Seneca is not an option due to it's size. It will air dry long before I could get one portion done.
It was expensive but I bought a Spotless water system (www.crspotless.com
). Now I wash I and then hook up the spotless system to my small pressure washer and rinse. And like the name says, it dries spotless. Like I said it was expensive but I had no other real option.