DIY Network

How to Add an Air Vent to a Sink

Adding an air vent to a sink is easy with these step-by-step instructions.

More in Plumbing

  • Time

    30 Minutes

  • Price Range

    $1 - $50

  • Difficulty

    Easy to Moderate


Step 1: Remove the Cabinet, and Detach the Drain

Remove the surrounding cabinet around the sink to gain better access to the pipes. Detach the drain.

Step 2: Prepare and Fasten the Vent

Prepare the vent by first wrapping the threaded end of the vent with plumbing Teflon tape. Wrap the edge three times in the direction that the vent will be threaded. Once it's wrapped, fasten it to the sink drainage pipe.

Step 3: Finish Installation

Reattach the drain and plunger. Replace the cabinet and test the sink.

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