Clean rusty gas tank via electrolysis

[EARNHARDT#3]

I just wanted to share my experience. My trucks original tank was very rusty inside. I picked up another one dirt cheap locally that was also rusty but a good candidate to try this on. So I flushed it out with water as good as I could. Then I mixed up 4 cups of arm and hammer super washing soda with the water and filled up the tank. I stood it up against the wall in the same position as it would be in the truck. I had the sending unit removed. I took a piece of all thread I had laying around and screwed a wire nut on one end to insulate it from touching the bottom of the tank. On the other end I slipped about a 5" piece of fuel line over it to insulate it from touching the sending unit hole but let about an inch of all thread sticking out to hook my battery charger to. I stuck the all thread into the sending unit hole. Then I took my battery charger set on the 6v/6a setting and hooked the negative to the tank and the positive to the end of the all thread sticking out of the tank. The solution started making small bubbles immediately. Within a few hours the all thread started collecting rust! Over the course of a week I would remove the all thread and knock off the rust with a piece of scotch brite and rinse it clean in the sink. I also repositioned the rod from one side of the tank to the other a few times...even stuck it through the filler neck just to change the position in order to try to get different areas better. The water got very foamy and rusty after a week. So I emptied the water out and pressure washed the tank out. It is amazing how the rust came right off leaving nice shiny metal behind! This old tank is nice and clean inside now and should be good to use for many years again. I am a big fan of electrolysis now and will use it for other things I'm sure. If you aren't familiar with it you can find a lot more info by googling "electrolysis rust" or search YouTube for videos as well.