[JM 35 Sedan]

I have seen tanks cleaned internally using an electrolysis set up. The tank was filled with a salt water or other current carrying solution and a metallic object was suspended into the liquid in a way that it would not touch any other metallic part of the tank. A low voltage, low current DC source was connected to the tank and the suspended metallic part so that current would flow in the correct directon through the electrolyte to remove internal rust/crud on the inner walls and baffles. I have not actually tried this method, but plan to do so in the near future. I have done plenty of external metal cleaning using electrolysis, but I have never tried this for internal cleaning of gas tanks or similar items. If anyone has tried this method already, maybe they will chime in with some of their experiences ...either good or bad.