Possibly a waterless wash like optimum no rinse or chemical guys ecosmart. No water needed and the ecosmart has worked great for me with no scratching or maring as long as you use good microfibers. Just a thought.
Love both of those products! I use ecosmart a lot and it's my go to for door jams. I'm still a sucker for the hose though so trying to find a way to wash with a hose still.