Need help venting a shower...

[Mark249]

Installing a corner shower in my bathroom and not sure how to vent it. I have to connect my shower drain to my sink drain that is already vented, can I run my shower drain 8 feet and use my sink and toilet vent, not sure if running my shower drain 8 foot to my vent is too far. The picture below shows how I would have to connect my shower drain, any info would be appreciated..

 

[John Gayewski]

8" is the max length you can run a 2" trap arm at 1/4" per foot of slope. So yes you can do it, just make sure you don't exceed the slope or the length.

Check your local code trap arm lengths to be sure. If you have a more strict code you'd have to run a vent vertically in a wall along the way and connect it to the existing dry vent system.