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Tub or shower wall tile preparation: Apply a layer of 1/2â³ thick cement backer board to the wall studs. Tape any seams and corners with fiberglass tape. Apply thin-set adhesive over the fiberglass tape, and allow it to dry. Roll a waterproofing sealer over the walls, and allow the sealer to dry.
Removing a Bathtub. Before you begin, make sure you have enough room to fit the bathtub through the doorway. Turn off the water supply. After the water has been turned off, open a faucet below the tub level to drain the water supply lines. Remove the faucet, the drain, and the spout.