Hi All, It has been a while since my last visit. I was working on a 41 bolt and got a lot of help here. Now I am working on a 1954 3100 someone installed a short bed on when they restored it but that is not why I am here. The owner has managed to let the truck sit in his garage and the fuel has rotted. I drained the fuel and removed the tank to discover a lot of rust in the tank. So much rust that it actually clogged the pick up tube inside the tank. While the tank is out I wanted to clean out as much rust as possible and would like to know my options. So far I have used diluted (10 to 1) muriatic acid and let stand over night. After draining and rinsing the tank, a lot of rust came out and I can see more flaked rust still stuck to the inside of the tank. I am thinking another dose but this time a stronger mix. Any suggestions?