1) live with the bugs/dirt/road grime.
2) pray for rain.
3) move to a park that allows washing.
4) if it gets windy enough, washing won't be necessary. The sand will clean it up real nice.
:B
Mike. Comments are anecdotal or personal opinions, and worth what you paid for them.
2018 (2017 Sprinter Cab Chassis) Navion24V + 2016 Wrangler JKU (sold @ ????)
2016 Sunstar 26HE, V10, 3V, 6 Speed (sold @ 4600 miles)
2002 Roadtrek C190P (sold @ 315,000kms)