How To Properly Vent A Bathroom Sink

A properly vented bathroom sink is essential for preventing sewer gases from entering your home. Sewer gases can be harmful to your health, and they can also cause unpleasant odors.

There are two main types of bathroom sink vents: AAVs (air admittance valves) and mechanical vents. AAVs are less expensive and easier to install than mechanical vents, but they are not as effective. Mechanical vents are more expensive and difficult to install, but they are more effective at preventing sewer gases from entering your home.

If you are unsure of which type of vent to install, it is best to consult with a plumber. A plumber can help you determine the best type of vent for your needs and can install it properly.

Here are the steps on how to properly vent a bathroom sink using an AAV:

Turn off the water supply to the sink.
Disconnect the P-trap from the sink drain.
Clean the P-trap and the sink drain.
Apply a bead of silicone sealant around the base of the AAV.
Install the AAV on the P-trap.
Tighten the AAV until it is snug.
Reconnect the P-trap to the sink drain.
Turn on the water supply to the sink and check for leaks.

If you are using a mechanical vent, the installation process will be different. It is best to consult with a plumber for instructions on how to install a mechanical vent.

Once your bathroom sink is properly vented, you can be sure that sewer gases will not be able to enter your home. This will help to protect your health and keep your home smelling fresh.