Have you tried the water based fluid? I have not, but evertime I have a hose burst on my 5000 in Burnet, I intend to due to the mess it leaves....
Oh, so that's your wash! Is it the one by the Sonic, or by the airport across from Hammand Galloway? I copied my backup light off of the latter. Nice wash, I've used both several times.
Hey, if it ever comes up, pass along this complaint to the chamber. For many years my wife and I brought our motorhome to the Bluebonnet festival. We always got reservations at GH RV park because I could then walk across the highway to the airshow. Every year that was one of our trips...up until 2 years ago when, for whatever goofy reason, the city stopped taking RV park reservations and went to first-come-first serve. I wrote a letter to the city telling them that would cause them to lose my business every year, because I'm not going to pack up and bring my motorhome all the way from West Texas, hoping there's a spot for me when I get there. It's a terrible decision they made - I haven't been back since.
Btw, I lived in Liberty Hill for awhile - just about built a wash there.