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S20 E22, Richard Trethewey teaches Kevin O’Connor about unclogging drains

How to Unclog Any Drain

Plumbing and heating expert Richard Trethewey shows us every common household drain, and how to unclog them like a pro.

What to Do When Your Sewer Backs Up

When it comes to bad things like a sewer backup, it’s always smarter to be prepared. Read on for a few tips for handling a sewer backup.

All About Septic Tanks

While many homes in the United States use municipal sewers, due to factors like location, some homeowners must opt for septic tanks. Read on to learn a few fundamentals of this sewage system.


How to Prevent Flooding in an Upstairs Laundry Room

Ask This Old House plumbing and heating expert Richard Trethewey explains how and why to install an automatic shutoff valve for the washing machine supply hoses.


Home Inspection Nightmares | Untamed Roof

The Ask This Old House crew share more Home Inspection Nightmares with Kevin O’Connor including some wild growth on a roof and chimney and an over-caulked plumbing fix.


How a Frozen Pipe Bursts

In this DIY Smarts, Ask This Old House plumbing and heating expert Richard Trethewey demonstrates how and why frozen pipes burst.

Septic System Guide: How It Works and How to Maintain It

A well-maintained septic system is trouble-free and something a homeowner doesn’t have to think about much. Here’s how to keep it that way.

All About Plumbing

Here’s how to make water work for you.