We use the 7 gal blue jugs for extra water on longer boonie trips. I purchased one of these to pump from jug to trailer tank:
http://www.ebay.com/itm/Eastman-Outdoors-Cooking-Oil-Filter-Pump-Battery-Operated-Turkey-Fryers-/321230207700?pt=LH_DefaultDomain_0&hash=item4acacffad4
You might be able to find locally, maybe for more moola though!! When I got mine, 4 yrs ago, I paid aboot $7. They have gone up a bit!!
I just take a folding camp table (those cheap white ones), set the jug on it and the pump will empty it in about 6-7 mins. Don't think the pump will lift from the ground, and the hose is too short, so the table. Lifting the full jug is no worse than loading into the truck when heading out. Batteries usually last a camping season. Simple and cheap also.
