Regarding the best fuel tank cleaning/coating systems, Craig took a pretty good photo of the inside of his tank. That reminded me of one of the cool tools we have here at work, (doesnt get used nearly as often as it should) a rigid inspection camera.
seesnake® micro™ inspection camera - ridgid professional tools
Neat tool, and for what it is at about $200 its not terribly expensive. Something like this would come in handy for taking a look inside that fuel tank!
seesnake® micro™ inspection camera - ridgid professional tools
Neat tool, and for what it is at about $200 its not terribly expensive. Something like this would come in handy for taking a look inside that fuel tank!