Ask This Old House

The Dutchman; What Is It? Flood Prevention (1x25)

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Tom helps Chicago-area homeowners Daryl and Catherine Katauskas repair their exterior door jamb by installing a dutchman. Back in the loft, Tom, Richard, Roger and Steve examine two unfamiliar objects and try to guess how they're used. Then Richard prevents a basement from flooding by installing a leak sensor and automatic water shutoff valve on a water heater.