I wash ours by hand and only use RO water.
Reverse Osmosis, think they call it zero water Don. I load up a 40 gallon water tank in the truck, haul it up to the coach and do my thang. unfiltered water here leaves a milky white film that is a bear to get off. BTDT Don sorry you won't make it this time. As far as the weather, Mother Nature resides here in Vegas, when she is doing good at the tables we have good weather, when she is not it is a different story lol