Basement bathroom group venting

[shane sitzman]

Hello,
I’m a new member. I’ve gathered a lot of great information from these forums since taking on my project. I’m building my house and have finished the framing and roof and am working the DWV system. I have most of it done having worked from the roof down. I just finished the basement bathroom consisting of a shower(right), lav, (middle)and WC (left). My plan is to put an AAV on the lav and have it serve as a wet vent. Before I get inspected I wanted an educated opinion.

Pipes are 2” from shower and lav. 2 to 3 just before WC wye. 1/4 slope on everything in this area. 1/8 from the bar sink on the other side of the basement. 6’ run from shower weir to lav wye.

Thanks for any info,
Shane

 

[Terry]

Is there a 3" cleanout on the long line going toward the back? If not, you will want a 3" cleanout at the lav location.
Some inspectors are okay with an AAV on the lav, and some not so much. You can ask them. The AAV does work there though as long as you have a vent through the roof somewhere in the system.

 

[Sponsor]

 

[shane sitzman]

Is there a 3" cleanout on the long line going toward the back? If not, you will want a 3" cleanout at the lav location.
Some inspectors are okay with an AAV on the lav, and some not so much. You can ask them. The AAV does work there though as long as you have a vent through the roof somewhere in the system.

Terry,
I hadn't planned to add the cleanout, but will now. Thanks a lot for taking a look.
Shane

 

[Reach4]

Elbows that transition drainage from vertical down to horizontal need to be long sweeps rather than she short ones that you have..