I would like to find a spot-free rinse system for the final rinse after washing. I tried the hose-end Mr. Clean but I was not happy with it- a little clunky. Is anyone using a slightly more robust system that can use regular household water pressure [without pressure pump]? They appear to be a reverse osmosis water filter with perhaps a little higher water output. I saw one advertised in one of those airline magazines awhile back, can't find much online.