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Season 7 Show Descriptions

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Episode #726, Season 7 of ATOH
Plumbing and heating expert Richard Trethewey helps a homeowner repair a leaking PVC drain trap underneath his kitchen sink...… more
Episode #725, Season 7 of ATOH
Host Kevin O'Connor and an electrician help a homeowner install a new ventilation fan in her bathroom...… more
Episode #724, Season 7 of ATOH
General contractor Tom Silva helps a homeowner install a new garage door...… more
Episode #723, Season 7 of ATOH
General contractor Tom Silva helps a homeowner prepare his concrete basement walls for finished wallboard...… more
Episode #722, Season 7 of ATOH
Plumbing and heating expert Richard Trethewey helps install a new type of "zoning" control for her forced-air heating and cooling system… more
Episode #721, Season 7 of ATOH
Plumbing and heating expert Richard Trethewey helps a homeowner install a new "dual flush" water-saving toilet… more
Episode #720, Season 7 of ATOH
Our annual "kids" episode features family-friendly projects that parents and kids can build together!… more
Episode #719, Season 7 of ATOH
Plumbing and heating expert Richard Trethewey helps a homeowner quiet his banging pipes by installing a water hammer shock suppressor...… more
Episode #718, Season 7 of ATOH
Landscape contractor Roger Cook shows a homeowner how to prune her neglected crabapple tree properly.… more
Episode #717, Season 7 of ATOH
General contractor Tom Silva helps a homeowner clean, stain and seal his mahogany backyard deck… more
Episode #716, Season 7 of ATOH
Plumbing and heating expert Richard Trethewey helps a homeowner convert a claw foot bathtub into a shower… more
Episode #715, Season 7 of ATOH
This special episode is dedicated to making the most out of your existing kitchen cabinets.… more
Episode #714, Season 7 of ATOH
Landscaping contractor Roger Cook helps a homeowner in Charleston, South Carolina fix a sagging wooden gate...… more
Episode #713, Season 7 of ATOH
Plumbing & heating expert Richard Trethewey and host Kevin O'Connor replace an old tank-type water heater with a new, energy-efficient "tankless" unit...… more
Episode #712, Season 7 of ATOH
Landscaping contractor Roger Cook helps a pair of homeowners break apart and remove a large boulder...… more
Episode #711, Season 7 of ATOH
General contractor Tom Silva helps a homeowner repair a very dangerous deck...… more
Episode #710, Season 7 of ATOH
Plumbing & heating expert Richard Trethewey heads to Indianapolis...… more
Episode #709, Season 7 of ATOH
Landscaping contractor Roger Cook helps a pair of homeowners build a retaining wall using pressure-treated timbers...… more
Episode #708, Season 7 of ATOH
General contractor Tom Silva helps a homeowner prepare a shower enclosure for tile using a new type of waterproofing system...… more
Episode #707, Season 7 of ATOH
This episode has many tips for making your home more energy efficient...… more
Episode #706, Season 7 of ATOH
Up in the loft, general contractor Tom Silva shows host Kevin O’Connor how to repair damaged laminate countertops...… more
Episode #705, Season 7 of ATOH
Landscaping contractor Roger Cook helps a homeowner transplant a giant Rhododendron bush...… more
Episode #704, Season 7 of ATOH
Landscaping contractor Roger Cook helps two homeowners repair the damage done to their lawn...… more
Episode #703, Season 7 of ATOH
Host Kevin O'Connor travels to Nashville, where he helps a pair of homeowners brighten up their kitchen. Then...… more
Episode #702, Season 7 of ATOH
Landscaping contractor Roger Cook shows a pair of homeowners how to transplant a large, mature tree to their front yard. Then Roger, along with...… more
Episode #701, Season 7 of ATOH
still image of a rotted beam from atoh episode 701

Original Air Date: Week of 10/02/08

Ask This Old House kicks off its 7th season on PBS. General contractor Tom Silva prevents a garage roof from collapsing by replacing a rotting support post. Then Tom, along with host Kevin O'Connor, landscaping contractor Roger Cook and plumbing and heating expert Richard Trethewey ask, "What is it?" Then, Roger helps two homeowners dry out their basement by installing a dry well to handle discharge from their sump pump.

Repairing a rotting wooden support post

Tom helped a homeowner repair a rotting post that supports the roof of her garage. Because the rot was so extensive, he determined that the entire post needed to be replaced. Tom started by temporarily supporting the roof with a 2x6 brace. Next, he removed the exterior trim and cut away the old, rotted post with a reciprocating saw. He then removed the old post and the rotting trim covering it. Next, he filled a small hole on the garage floor where the old post was with some fast-setting concrete. Before the concrete cured completely, Tom inserted a galvanized steel post base to keep the new post from being in direct contact with the concrete, which can cause more rotting. Next, Tom installed a new 4x6 pressure-treated post on the steel base and fastened it into place. He then repaired the jambs next to the new 4x6 post with new 2x4's and fastened them securely to the post. Finally, Tom covered all the exposed framing with new PVC trim.

Where to find it?

All of the tools and materials for this project, including pressure-treated lumber, fast-setting concrete, steel post bases and PVC trim can all be found at your local home center or lumberyard.

What is it?

The guys try to guess the intended purpose of an unusual-looking product. Richard showed a small transmitting device that can be flushed down a drainpipe. It is used for finding underground drain lines and septic systems.

Where to find it?

NaviTrack FloatSonde®
Manufacturer: RIDGID
1-800-4-RIDGID
www.ridgid.com

Installing a dry well to collect discharge water from a sump pump

Roger helped a pair of homeowners who had a sump pump that was discharging water directly outside of their home's foundation, which created a wet, muddy area next to the house. To collect the discharge water and divert it away from the house, Roger suggested installing a dry well. First, he dug a hole for the dry well away from the house, and a trench for a 1-1/2" PVC drainpipe to take the discharge water from the house to the dry well. In the hole for the dry well, Roger poured several inches of crushed stone to help the water leach out. Next, he lined the hole with filter fabric to keep soil and sediment out of the crushed stone. With the pipe in the trench, Roger connected the pipe to the drywell and connected a "pop-up" drain on top of the dry well, which allows excess water to escape in case the dry well gets too full. Finally, Roger backfilled the hole and trench with soil and the installation was complete.

Where to find it?

FLO-WELL
Manufacturer: NDS
851 N. Harvard Ave.
Lindsay, CA 93247
1-800-726-1994
www.ndspro.com