, I do have a bladder tank that's ready for scrap but would need to figure out how to get the rubber out first
I cut down a bladder tank earlier this year intending to make hillers out of it. I just used a 4-1/2" angle grinder to take the top and bottom off of it. I was surprised at how thin the steel was on mine. This is a project that is currently on hold, but I am probably going to try to find some heavier steel for it. Hoping that yours is heavier than the one I have.