Ask This Old House

Season 6, Episode 12

Episode Title: Grading; Inside Walls; Bathtub Stopper

Air Date: 2007-12-20

Overview:

Landscape contractor Roger Cook shows host Kevin O'Connor several different ways to determine the grade, or pitch, of a landscape. Then, back in the loft, Roger and Kevin, along with general contractor Tom Silva and plumbing and heating expert Richard Trethewey ask, "What is it?" Then, Tom and Richard show Kevin different ways to "see" what's inside a wall. Finally, Richard helps a homeowner repair a bathtub that won't hold water.