Ask This Old House - Season 7 Episode 21
Plumbing and heating expert Richard Trethewey helps a homeowner install a new "dual flush" water-saving toilet. Then Richard, along with host Kevin O'Connor, landscaping contractor Roger Cook and general contractor Tom Silva ask, "What is it?" Next, Roger and Kevin head outside to install an in-ground sprinkler system that any homeowner can install.
First Air Date : 2002-10-10
Last Air date : 2025-03-27
Runtime : 57 minutes
Genre : Documentary
Cast : Richard Trethewey, Norm Abram, Roger Cook, Kevin O'Connor, Tom Silva, Steve Thomas Rooney
Crew :
Quality : 
Subtitles :
- Season 7 : Episode 12008-10-02
- Season 7 : Episode 22008-10-09
- Season 7 : Episode 32008-10-16
- Season 7 : Episode 42008-10-23
- Season 7 : Episode 52008-10-30
- Season 7 : Episode 62008-11-06
- Season 7 : Episode 72008-11-13
- Season 7 : Episode 82008-11-20
- Season 7 : Episode 92008-11-27
- Season 7 : Episode 102008-12-04
- Season 7 : Episode 112008-12-11
- Season 7 : Episode 122008-12-18
- Season 7 : Episode 132008-12-27
- Season 7 : Episode 142009-01-01
- Season 7 : Episode 152009-01-08
- Season 7 : Episode 162009-01-15
- Season 7 : Episode 172009-01-22
- Season 7 : Episode 182009-01-29
- Season 7 : Episode 192009-02-05
- Season 7 : Episode 202009-02-12
- Season 7 : Episode 212009-02-19
- Season 7 : Episode 222009-02-26
- Season 7 : Episode 232009-03-07
- Season 7 : Episode 242009-03-12
- Season 7 : Episode 252009-03-21
- Season 7 : Episode 262009-03-28
