Washer plumbing in basement garage

[LS6 Tommy]

Reading this makes me realize I never looked to see if there's a vent tied into my washing machine drain line. Been that way since before I bought the house 26 years ago with no problems, but...

Tommy

 

[stokefire7]

Got a week off of work, getting back to this. I plan to build a frame around the aav so I can change it out whenever. My level is 48" in height. See any issues with this?

Well done. Thanks for the follow up.