Ask This Old House - Season 4 Episode 3
Plumbing and heating expert Richard Trethewey helps a homeowner improve the quality of her drinking water by installing an under-sink filter. After that, Richard and host Kevin O'Connor are joined in the loft by water-filtration expert Bill McTighe who explains several other types of residential water filters. Then, landscaping contractor Roger Cook helps a homeowner select a drought-resistant tree and plant it properly in her sloped front yard.
- genus: Documentary
- Studio: PBS
- keyword: home renovation
- cast: Richard Trethewey, Norm Abram, Roger Cook, Kevin O'Connor, Tom Silva, Steve Thomas Rooney
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