Craig Alwine
New Member
Hello! I need some plumbing help with my basement bathroom/laundry room. My house was built with the washer draining into a sump pit with a sump pump via a 4" main line. A toilet and sink are also plumbed to the main line, but have never been installed or operational. Now that I'm ready to finish this room I want to add a shower also. There are no individual vents for the sink, toilet, or washer. You can see on my drawing how I want to add the shower to the main line via a wye connection. The sewage pit is vented with 1 1/2" pipe and is connected to the whole house vent pipes. I'll replace the sump pump with a 1/2 HP sewage pump and replace the 1 1/2 " discharge pipe with a 2" discharge pipe that connects to the main line going into the septic tank. How do I properly vent this setup? Will an AAV at the sink be enough? I'm in Indiana and am told Indiana goes by the Indiana Plumbing Code and has adopted UPC.
Edit: the drawing does not show it, but the washer is connected to the main line that drains into the sump pit.
Edit: the drawing does not show it, but the washer is connected to the main line that drains into the sump pit.
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