Best Plumbing Layout for Dishwasher, Disposal, and AAV?

Question:I’m setting up a 2″ drain in front of the dishwasher and disposal outlet. Due to other plumbing and HVAC obstructions, I can’t move either of these fixtures. I also need to install an air admittance valve (AAV) and a garbage disposal. I’m unsure which layout is best: the first setup with a bunch of… Continue reading Best Plumbing Layout for Dishwasher, Disposal, and AAV?

Do I Need an AAV or Just a Sanitary Tee for Venting?

Do I Need an AAV or Just a Sanitary Tee for Venting? If you’re finishing your basement bathroom and considering venting options, you might be wondering whether to use an Air Admittance Valve (AAV) or if a simple sanitary tee will do. Let’s clear up the confusion and walk through the proper venting process. Q:… Continue reading Do I Need an AAV or Just a Sanitary Tee for Venting?