Ask This Old House Season 6 Episode 18

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.

Episode Title: Water Softening; Fiber-Cement Siding

Air Date: 2008-01-31