Tank ???'s

Okay, I know the best way to do this is buy another tank, but I cant find one like what I got, and it is perfect with my setup, I dont want to change it. Anyways, I didnt drain my tank or anything before I parked the truck. My truck has no air leaks, so the air set, condensated and started to rust a little. I caught it before it got bad, but it isnt something I feel good about now. Is there a way to clean the inside out good?? Like with some clr?? Or am I just going to have to redo my shit again? Thanks in advance, and sorry for the dumbass question. I know I'm an idiot so shutty!!

dont sweat it. Do you run a watertrap? Its hard to avoid it. Every tank I have ever serviced has had the smallest amount of liquid in the bottom. Just drain it every couple months.