I still wash using an industrial-size sponge, bucket of water and Rain-X car-wash solution. I do about 1/4 of the side, then come back and chamois it off the surface and windows and then move on to the next section and repeat. I move the ladder a lot, and it's a workout...but, it also gives me a chance to watch closely for anything that may be out of the normal on the unit.
I've tried the telescoping brush on a hose, but seems like I get more water back down my arms and on me than on the "fiver".
For the roof - water and "Dawn" detergent and for that...I do use a sponge mop and then rinse it off with clear water.
Robert & Estha Shiflet
'12 Columbus 320RS - 2015 Ford F-350 King Ranch & 2010 Ford F-250 King Ranch
Nights Camping 2012 & 2013 & 2014 & 2015: 458 ~ Nights Camping 2016: 95 So Far