Kitchen Disposer; What Is It? Hearing Protection

Richard is off to Chicago to help homeowner Dave Skena install a new garbage disposer. Back in the loft, Ricard, Tom, Roger and Steve examine two unfamiliar objects and try to guess how they're used. Outside the barn, Roger and hearing protection expert Dr. Mark Stephenson test the decibel level of several power tools. Inside, they show Tom several new types of hearing protection.

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S01E25 - The Dutchman; What Is It? Flood Prevention