Ask This Old House season 21 episode 23
Episode title: Flagstone Repairs, Tub Diverter
Richard troubleshoots why a homeowner's shower leaks when the tub is running and makes the necessary repairs, then in studio, Richard explains why it was a unique repair; Heath deep dives into different wire gauge sizes and the electrical load capabilities of each size; Mark helps a homeowner repair some loose flagstone steps in his entryway and in his basement.
