cutting cast iron

[Unregistered-pjhalick]

I too am searching for a way to quickly cut or break cast iron tubs. Usually I smash them with a sledge hammer. But this is slow and messy. I have not had much luck with a cut off wheel on a high speed grinder. Perhaps a 7″ or gas powered cut off tool (Like the fire the department uses)would be the best. Or maybe an oxy acetylene torch? Any one have any ideas?