I stupidly forgot to take a “before” picture. I had never seen the interior of a tank in such bad condition. 1cm of gas that had transformed in some sort of hard slush. Holly shit that was bad.
So I cleaned it up for a good two hours and now it’s clean as fuck :)
Next step will be welding the tank back together and waiting for the new fuel pump to arrive.
How the defective pump look like. It’s not rust... It’s what stagnant gas look like after 5 or 6 years lol.