sumping a tank?

[Boss 351]

I may get my tank sumped for this season as it would be better for my inline pump. What's involved besides welding? Isn't there some kind of coating that needs to be applied inside the tank? I wonder if there are other means for getting fuel out of the tank? Like hooking up some sort of fitting near the bottom to feed the pump, sort of like a sump setup but cheap lol

Currently I modified my EFI pickup (removed pump & placed SS line), it works fine but could be better (rather feed the pump with gravity).

 

[Oldskool]

Don't know if you ever found the info you wanted, but in case you're still interested, here's a good article in Hot Rod http://www.hotrod.com/howto/70438/index.html

 

[Ranchero5.0]

On stang tanks I flip the tank over and flood them with water through the fill port (wrap a rag around the hose) and adjust the flow so the water stays within 1/2" of the section you are going to weld. Worked fine a bunch of times. Pretty painless except the tank gets heavy when full of water and likes to tip over in the middle of the weld and saok you. PITA.

Jamie