Ok, gotcha. Didn't realize that you wouldn't have a spigot nearby to use. THAT was the piece of the puzzle I was missing.
I have a marine bilge pump stowed under my bed just for this purpose. 12v, can be alligator clipped to your battery, no permanent mounting or wiring needed. Good luck!
2015 XLR Hyperlite 30HFS5 (mods being performed regularly)
2009 Salem LA 292fkds (gone)
Nights- ('12)23 ('13)23 ('14)15 ('15)31 ('16)25
2014 Harley Davidson FLHX (XLR cargo)
2014 VW Jetta TDI (diesel sipper, camping support vehicle)
2011 Ram 2500 CC 4X4 CTD, B&W Companion (toy hauler hauler)