can you weld on an empty propane tank
Welding on Propane tanks is pretty simple. First; Empty the tank, either by venting or by transfer to another tank. Second; Fill the tank with water and drain. This removes all the gas. The tank will still reek of propane, but there isn't really any in the tank.The smell of rotting garlic comes from the Mercaptans that are added to fuel gasses to make them stink. These mercaptans can form a oily coating on the inside of the tank. The only way to remove the mercaptans is with a bleach rinse.However, just because you smell mercaptans does not mean there is still gas in the tank. Third grind out the hole, and weld the damaged area.he tank will still reek of propane, but there isn't really any in the tank. The smell of rotting garlic comes from the Mercaptans that are added to fuel gasses to make them stink. These mercaptans can form a oily coating on the inside of the tank. The only way to remove the mercaptans is with a bleach rinse.