Yeah that's what I had read Sal, but either way I don't feel comfortable with any vapors.

Mike although I would love to do that it just means there is more rusty things that I would be removing and I don't know what my timeline on something like that would be. The one alternative that I can think of is manually pump out the gas, then fill the tank with a bunch of water then drain all the water after welding and put the gas back in. To me that seems like way too much effort though.

We shall see though, I would love to weld it cause I know it would stay and I won't need anything, but I would need to create a device that would keep sparks out, maybe I will see if I can create something like that.

Paul, that sounds like a good idea to me, I would love to test it!My one concern is that you will be missing out on fuel in the tank because it would add extra height to the sending unit.