TO REMOVE THE OLD TILES
• Plug the drain with a rag and cover the basin with a towel or tarp.
• Pry out the loose tiles with a small pry bar or scraper. Firmly but carefully insert the tip of the pry bar in the loose section of the joint, and then slowly pry the tiles away from the wall. You can try to reuse the tiles, but you must work very carefully when you remove the tiles. Chances are, you’ll need to buy replacement tiles.
• After the first course is removed, it’ll be easier to slide a scraper behind the next course of tile. Wedge the scraper far enough inward to get good leverage for easier prying.
• Continue removing courses of tile until you reach a course that is firmly adhered. Tapping on the tile is a good way to tell if it’s solidly attached—a hollow-sounding tile means that it’s loose. Be sure to see that an undamaged section of wall is eventually revealed; this will be necessary to attach the new section of wall.
• If you’re reusing tile, use the scraper to remove adhesive from the tile.
TO REMOVE THE OLD WALL SECTION
• With a utility knife and straightedge score the length of wall that needs to be removed. Doing so will diminish the chances of disturbing the rest of the wall when removing the damaged section. Leave a perimeter or “lip” of undamaged wall; you’ll butt up to that when fastening the new cement board.
• Use a drywall saw to cut out the damaged wall section going through the lengths you’ve scored. Remove any nails or screws that are securing the damaged wall to the studs. Pull out the damaged wall section.
• Be sure that the framing is sound. (If you find the wood is wet, soft, and rotted, you’ll need to remove a larger section of tile and wall, and then reinforce the framing with new wood. At this point, you may consider bringing in a professional.)
• If mold has grown on the framing, wipe down the studs with an antifungal cleaner.
• Wipe away any remaining debris and vacuum the entire area so you don’t damage your tub surface by grinding debris into it.
• Allow the entire area to dry out completely before continuing this project.
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