What do I do with this now.

[phatdaddy]

I use the big tank to drain my oil into when servicing the 4 stroke 150, then haul it to auto parts store to dispose of. The small tank that was under the cowling, I use as an IV bottle when working on outboards, lawn mowers, generators, etc. that way I can eliminate any fuel problems from the equation when troubleshooting an issue.

Or chunk them away