may be a bit messy but the following should work:
a angle grinder and cut off wheel will allow you to get it most of the metal out and break it down to more manageable pieces. such as splitting it in half...
if its stone or cement a sledge hammer and mason chisel will break it down. the mason chisel will allow you to choose break points and strategically weaken it.
wet dry vac would be helpful for clean up especially if it has water in yet.
some plastic would maybe work to keep mess to minimum.
you can also use a diamond tile wheel to score cement or stone and cut up the metal. this will necessitate the plastic as it will be very messy but provide much more controlled stress / break lines.
a mask would probably be helpful too. no sense in breathing dust. in a confined space.
Bookmarks