How Do I Vent A Bathroom Sink

Venting a bathroom sink is an essential aspect of plumbing. It allows air to enter the drainpipe, which prevents the sink from draining slowly or creating a gurgling sound. Without proper ventilation, the sink may also emit sewer gases. There are a few essential aspects to consider when venting a bathroom sink, including the type of vent, the size of the vent, and the location of the vent.

The type of vent used for a bathroom sink is typically a AAV (air admittance valve). AAVs are one-way valves that allow air to enter the drainpipe but prevent sewer gases from escaping. They are a good option for bathroom sinks because they are easy to install and do not require any special tools or skills.

The size of the vent is also important. The vent should be large enough to allow air to flow freely into the drainpipe. The size of the vent is typically determined by the diameter of the drainpipe. For a 1-1/2-inch drainpipe, a 1-1/2-inch vent is typically used. For a 2-inch drainpipe, a 2-inch vent is typically used.

The location of the vent is also important. The vent should be located as close to the sink as possible. This will help to ensure that air can flow freely into the drainpipe. The vent should also be located in a place where it will not be blocked by any fixtures or objects.

Venting a bathroom sink is a relatively simple task that can be completed in a few minutes. By following these essential aspects, you can ensure that your bathroom sink drains properly and does not emit any sewer gases.