I completed the build on my house and moved in about 2 years ago. We have two bathrooms which have been functioning since then. On the left side of the house we have an ensuite which is vented through the roof. In the middle of the house we have a family bathroom which uses an AAV. We have a second ensuite on the right of the house which I am in the process of plumbing in. When we built the house we put all the drainage in place ready and just blocked them off, so at the moment we have a 4" soil pipe coming out of the floor where my toilet will be going. I have been told I need to vent it. My question is, can I use an AAV, or do I need to take it up through the roof to vent it?
Many thanks
Danny
Many thanks
Danny