Just spent the entire day washing the outside of the trailer. Started with the roof and used powdered Spic-N-Span and a little Dawn liquid detergent.
Good news is the roof is clean (as clean as it gets anyway). Bad news is that the Spic-N-Span leaves a chalky residue where it over-tops the roof, down onto the sides and windows of the trailer.
Think I'll try something else next Spring.
Then I washed the front the front and rear caps and the sides and slides. I used some Thetford RV wash (liquid). Made the mistake of adding just a little bit of Calgon powdered water softener. I don't know what I was thinking. Talk about leaving chalky streaks and spotted windows! Didn't notice until I was a couple hours into it. Ended up redoing that half of the trailer with just the Thetford liquid.
Well, the unit is pretty clean. May clean the windows inside and out next weekend. So much for R&R at the trailer
Jim