Ask This Old House

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Season 7 Show Descriptions

Showing results for "Season 7"
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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
Ask This Old House Episode seven hundred twenty-one of Season seven

Original Air Date: Week of 02/19/2009

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.

Richard installs a dual-flush toilet

Richard replaced an old 3.5 gallons per flush (GPF) toilet with a new, state of the art dual-flushing unit that uses 0.9 GPF for liquids and 1.6 GPF for solids. With the old toilet removed and the wax ring scraped away from the closet flange, Richard installed the new toilet using a special mounting flange and mounting blocks unique to this style of toilet. This special way of mounting allows for the brass "closet bolts" to be completely hidden from view and protects them against corrosion.

Where to find it?

Richard installed a new type of water-saving toilet with a dual-flushing feature.

Aquia® II Dual Flush Toilet (model CST416M)
Manufacturer: TOTO USA, Inc.
(888) 295-8134

What is it?

The guys try to guess the intended purpose of an unusual-looking product.

Where to find it?

Roger showed a floating "Pond Breather" used to aerate a fishpond to help fish survive when ice forms on top of the water during the winter months. It uses less electricity than conventional pond heaters. It is manufactured by:

Allied Precision Industries, Inc.
800-627-6179

Installing an in-ground sprinkler system

Roger and Kevin installed a low-cost sprinkler system for a small lawn. First, Roger used an outdoor faucet to test the water pressure and see how many gallons per minute the faucet could deliver. Roger then designed the system using individual spray heads with specific spray patterns. This ensured that the water will fall only on plants and will not be wasted on nearby walkways and other hardscaping.

Next, Roger marked the lawn where the sprinkler heads would be located. He dug a trench about 6-8" deep to bury the plastic supply tubing and sprinkler bodies. The connections between the main water line and the plastic T-fittings were made with special crimp-type fittings. Roger used smaller branch lines (sometimes called "funny pipe") to connect the sprinkler heads. With all the tubing and sprinkler heads in place, Roger connected the main supply pipe for the system to an outdoor faucet, using a battery-powered timer to control when the water gets turned on and off.

Expert technical assistance for this project was provided by:

Eastern Brothers Landscaping & Irrigation
P.O. Box 549
Lexington, MA 02420
(781) 863-0789

Many of the sprinkler system components were manufactured by:

Rainbird Irrigation
800-724-6247

The battery-powered timer (model No. 56610, programmable water timer with 2 outlets) was manufactured by:

L.R. Nelson Corporation
800-635-7668
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
ATOH kicks off with Tom Silva preventing a garage roof from collapsing by replacing a rotting support post, Then Tom, along with...… more