We sell a bunch of RO (and in some cases DI) to auto detailers, car wash facilities, and window washing biz. The key is no minerals in the water, creating that "spot free" wash folks want. One guy has a 33 gallong tank in his truck and has it preessurized and just rinses off his boat when he pulls it from the lake and it dries , ...eh.... spotless.
He prefers a presurized fine nozzle to get the lake smegma off the hull, and when needed wipes really persistant stains with a rag then rinse off with the RO water. He also uses it to wash his windows at home, and of course his car.
We have a brush spray head here at work for our employees and its amazing how easy it is to keep your car clean by spraying off daily.
Oh yeah, in Arizona in the summer it dries before you can "manually" dry it off. In the winter we fire up a blower (weed) and blow the excess water off and presto, no more water, no more spots, no more dirt.
T
