Ask This Old House

Mixing Valve; Tool Batteries (5x12)

Air date: Dec 21, 2006

Plumbing and heating expert Richard Trethewey heads to San Francisco to help a homeowner repair an old shower mixing valve. Then Richard, along with host Kevin O'Connor, landscaping contractor Roger Cook, and general contractor Tom Silva ask, "What is it?" Then, up in the loft, Kevin and Tom are joined by battery expert Tim Pugh to discuss battery technology in cordless tools and proper recycling of batteries.