Enlarge and Clean Wall Opening

What happens here

To accommodate the size of the new recessed valve box, the initial, small access hole in the wall (likely drywall or plaster) needs to be enlarged. A saw (potentially a drywall saw or utility knife for finer cuts) is used to cut a larger, rectangular opening. This step ensures that the new fixture fits properly and allows adequate working space for plumbing connections. Any loose debris or rough edges from the cutting should be cleaned or smoothed.

Goal: The existing opening in the wall is carefully enlarged using a saw to provide sufficient space for the new recessed valve box and to ensure a clean installation.