I have a few on going projects on hold right now waiting on parts so I decided to drop my gas tank and see what was inside. What came out of the tank is dark brown and the float is almost gone. I have a new float from bernbaums and I plan on replacing the entire fuel line as well. But right now I need to clean the inside of the tank, as clean as I can get it. Never done this but have watched a few UTubes. Those guys are dumping rocks, nails or anything else inside then swishing it around with soap and water. One guy even tied the tank onto a rear wheel of a 3-wheeler raised up and let the bike swish the stuff around. Kinda funny but I guess it worked however something like that is not going to be an option for me. I am looking for a cleaner/rust dissolver that I can dump in, maybe some manual swishing then dump back out.
Has anyone cleaned a fuel tank using what cleaner and method and gotten excellent results?