I ran my fuel line tonight in preparation to hopefully starting it within a few weeks. The tank i got was from a buddy and i can hear rust dust and stuff moving around the tank when i turn it side to side. nothing huge and cancerous but i know it is finer scale. I originally tried to stick a shop vac down the fuller to get at it, but it didnt do much and there seems to be a baffle in the way to really get in there. I popped off the sending unit and saw it rusty and i felt under the lip and can feel rust scale. So i need to either replace the tank or get rid of rust. I know about the use or rocks, nuts and bolts to shake around and loosen up the scale. i can use the chemicals to kill the rust. But with teh baffles i feel like i would never get the rock/nuts/bolts out of the tank once i put them in there. Any other options? I do not want to try running the tank as is because i do not need teh hassle of constantly replacing filters.