Putting a drain plug in a gas tank?

[jplutz]

Originally Posted by Lawson Cox

How do you get this sort of plug INSIDE the gas tank, and with a wrench?

G B Sisson describes it fairly well.
The plug slides approx 1/2 way into the hole, with the nut on the outside(bottom of the tank). When I tightened the nut the neoprene held the bolt steady and I was able crush and expand the plug to seal the hole. I tried it at NAPA when I bought it and it worked in the store. That was last April. The plug and the hole are dry as a bone. Checked yesterday when I took the car for a drive.
JPL