Where should I vent this? (image)
I recently installed new plumbing in my basement for a bathroom I'm finishing which is directly under the 2 upstairs bathrooms. Can I vent the pipes where I have it labeled? Keep in mind, the pipes are already cemented in and the main line where I have it marked is accessible but the vent would have to go out of the side of my hous by my air conditioner. Also, I can't find a vent for the bathrooms upstairs but I assume they are in the wall where I can't see them. THANKS in advance!!
http://www.mcgregorracing.com/images...ingDrawing.jpg