BPGOG
New Member
I am trying to add a second bathroom to my house without adding a vent through the roof. The 1 and only existing bath on other corner of house has a vent through roof. I want to connect to drains in basement, so have shower, toilet, sink, joining together in 3" drain, then dropping vertically for 8 ft to get to the basement. My worry was adding the shower downstream from the toilet that it would put positive pressure on the shower P trap when the toilet flushed and the slug of water was approaching the shower Tee. I added a AAV (mechanical valve) to the shower after the P trap so it wouldn't suck dry. Was going to do heel inlet on the 3" elbow below the toilet, but worried about backflow..
thoughts, suggests? Is this good as is? I'm ready to glue it.
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thoughts, suggests? Is this good as is? I'm ready to glue it.
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