Air gap keeps water flowing from dishwasher

From: The Milwaukee Journal Sentinel | Date: August 6, 2000 | Copyright information

Ask The Contractor

Air gap keeps water flowing from dishwasher

Sunday, August 6, 2000

Q: When adding an automatic dishwasher to the home, why is it necessary to have one extra hole in the sink?

A: The additional hole in the top of the sink leaves room to install an air gap, which prevents any water in the sink from backing up into the dishwasher, according to Rich Price of Midwest Plumbing in Waukesha and Watertown.

"The air gap prevents a direct connection b...

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