gas tank ?

[Esteban]

i've found little ones on old edgers ,and a big rectangular one i think will hold 1.5 gals on older machinery, so look around or try swap meets. i raid the machinery when they bring it to the yard to get rid of it, the trick is though to find tanks not banged up, out of 12 machines i found 2 with no dents

or, rusted out ! There is a way to pop out dents, BUT, I am not going to post it here because of the risk.