Cookiemonster
New Member
Just a DIY'er here. I'm in the process of trying to clean up some plumbing work in my laundry room, in order to place the water lines and drain/trap inside the wall (first pic is a "before"). Initially I thought I needed to add an AAV since there is no vent. However, in the basement, it looks like there is a horizontal wet vent set up (I think thats what it's called). My question is- since the whole drain system is technically vented, can I just add a 90 to my setup in the second picture? Or would it be recommended to keep the T and add the AAV instead? Just pretend like the pipe after the trap is full length, lol. Thanks in advance.