E3 | Doorbell Retrofit, Driveway Edging | Ask This Old House

Heath Eastman helps a homeowner install a new doorbell by locating and replacing the original doorbell wiring; Richard Trethewey explains the function of bottle traps and when they could be considered as an option in small bathrooms; Mark McCullough helps a homeowner take out their old brick driveway edging and replace it with cobblestones.