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Flathead Fever · 01-21-2023, 06:06 PM

At the phone company the Vender that installed the racks in the back of the vans used parolees, they drilled through the floors, and it never occurred to them there were gas tanks under there. They drilled right into them. They did it to hundreds of brand new Dodge vans. It wasn't discovered until the vans had been delivered all over CA. They sent out a guy to each location. he dropped drop the "full" tanks down far enough that he could weld up the holes. He had flow meter like an a TIG welder, hooked to either nitrogen or Co2 to purge the oxygen out of the tanks. He welded those tanks with gas in them and he didn't blowup.

No matter how clean you think the metal is, the fuel can get into the metal. The heat can bring the fuel out of the metal and turn it into vapor that can ignite. Unless there is zero oxygen in the tank. It doesn't seem worth it to me just to have a drain plug when you can take an electric pump and suck the fuel out or siphon it.

01-21-2023, 06:06 PM	#11
Flathead Fever Senior Member Join Date: May 2010 Location: Yucaipa, CA Posts: 1,095	Re: Putting a drain plug in a gas tank? At the phone company the Vender that installed the racks in the back of the vans used parolees, they drilled through the floors, and it never occurred to them there were gas tanks under there. They drilled right into them. They did it to hundreds of brand new Dodge vans. It wasn't discovered until the vans had been delivered all over CA. They sent out a guy to each location. he dropped drop the "full" tanks down far enough that he could weld up the holes. He had flow meter like an a TIG welder, hooked to either nitrogen or Co2 to purge the oxygen out of the tanks. He welded those tanks with gas in them and he didn't blowup. No matter how clean you think the metal is, the fuel can get into the metal. The heat can bring the fuel out of the metal and turn it into vapor that can ignite. Unless there is zero oxygen in the tank. It doesn't seem worth it to me just to have a drain plug when you can take an electric pump and suck the fuel out or siphon it.