This set up will make my back feel much better. Not entirely sure why I didn’t think of this this morning. Other than, I really didn’t think it would take this many times to flush the tank out. Lesson learned, I should have started with some mechanical agitation with BBs in this to begin with. And, I should’ve rinsed it out much more thoroughly with the hose before I went to flushing it with gas. I really didn’t think the tank was this bad, I ended up being much worse than I thought.