How to Remove a Cast Iron Tub. Removing a cast iron tub without professional help is a strenous job. Since these tubs weigh at least 300 pounds, it requires removal in pieces and is not likely salvageable. Gather a sledgehammer to begin demolition of the cast iron tub.
Things You'll Need
- Pry bar
- Tub tool
- Towels or rags
- Large wet blanket
- Protective eyewear
- Long sleeves
Shut off the water supply to the tub. Drain excess water.
Remove caulking and the first few rows of tile framing the tub with a pry bar. Break open the walls back to the studs with a hammer.
Disconnect the plumbing fixtures, faucet, handles, shower diverter, drain lever and water valves with a wrench and a tub tool. Accessing the drain trap and tailpiece requires the worker to expose an area from the underside of the tub or from the ceiling below.
Stuff a rag into the drain hole. Cover the tub with a large wet blanket.
Swing a sledge hammer towards the center of the tub's side wall to start breaking it apart. Continue until the brittle cast iron pieces are small enough to be carried away for disposal.