JWR’s Introductory Note: This is an update to a reply to a letter that I posted in SurvivalBlog back in February 2007. Given the recent spike in gasoline and diesel prices, I thought it would be apropos to re-post it. — Every well-equipped retreat should have at least one “field expedient” 12 VDC fuel transfer pump. These pump rigs are popular with dirt bike, ATV, and snowmobile enthusiasts. They are very simple to construct. Here are the materials that you will need: 1 – An automobile or truck