Another thought. If you have access to a dump somewhere on the route home, let the tank slosh around for a few miles, the more the better, then dump. I have a public park/campground near by, so when we are heading home I stop by there and dump. They don't charge, or haven't so far but I would pay a reasonable amount to use the station.
Gary, Cindy, Reacher (Maine Coon), and Vivian (in spirit only now).
Retired: July 31st, 2013 and loving it.
2011 Coachmen Encounter 37 TZ pulling a 2012 Wrangler Unlimited Sahara. Many upgrades, additions, mods, and changes.