Ask This Old House — Episode 18: Water Softening; Fiber-Cement Siding

You are watching the episode Water Softening; Fiber-Cement Siding Plumbing and heating expert Richard Trethewey heads to Phoenix, Arizona to help a pair of homeowners install a new water softening system. Then, general contractor Tom Silva shows a homeowner how to install fiber-cement shingles on his new backyard shed.