Need suggestions for getting old gas out of tank

Mine sat 25 years.

"Bad" to say was the least, new tank and lines and all is well except the folks that always chime in to tell you your aftermarket tank looks like ****! I suggest pumping out by way of any electric pump you can find! Clean it with the available solutions and move forward. If you do not care then replace it and have piece of mind! Whatever you decide don't continually crank the engine over to push it out!

I kept my original tank and a couple years outside it evaporated the rest the crap in it. Guess I own some global warming if you subscribe to that! A good washing and it may be fine to put back in.