- In this case, you can tell by hitting it with the sledgehammer. If
- breaks, it's cast iron. If it bends, it's steel. :)
- If it doesn't bend and doesn't break, you may have to hit it harder,
- or at a more vulnerable spot. Dn't swing toward your own knees.
Many years ago, I was convinced my tub was cast iron, probably due to
the rough, black coating on the bottom. Knowing that you should crack
a cast iron tub to make it easier to remove, I grabbed my heaviest
sledge, protected various parts of my body, gritted my teeth and swung
as hard as I could. It can be pretty scary when a sledge hammer
bounces back, almost to the position it started from! I'm lucky I
didn't pull something.
Steel tubs come out very easily, and in one, slightly dented piece.