Looking to add a laundry sink at the blue line. I know the setup is wrong so I need a p-trap at the red circle, and also remove the 3 elbows at the corner and replace it with one (that little stub-out is a false wall I can remove). But how do I properly vent this? I can't get to the main vent so I'll need to use an AAV. Do I vent it after the laundry sink? Or will I need to vent it both after the washer and after the sink too with a tee?
I do not want the washer drain hose to hook over the side of the sink. It's too far away, and we have plans for the space between the washer and the sink.