Review of Basement Shower and Toilet Plumbing

[moore1289]

I'm adding a toilet and Shower to my basement and I'm unsure on the venting. My vanity is on the other side of the main drain and is straight forward. Please see the diagram I've attached. I have the Toilet venting up through the wall between the shower and toilet, and the shower emptying into the 3" toilet plumbing downstream of the vent. Do I need another vent after the shower joins in?

 

[Terry]

The 2" vent should go on the shower before it enters the line with the toilet.

 

[Sponsor]

 

[moore1289]

The 2" vent should go on the shower before it enters the line with the toilet.

Thanks Terry. Ive revised the drawing. Would this work? Ive read that I can't vent horizontal, so this is the best I could come up with.

 

[moore1289]

do I need both vents or is just moving the vent to before the toilet enters sufficient?

 

[Plumber69]

do I need both vents or is just moving the vent to before the toilet enters sufficient?

You just need vent off shower. shower and vent should both be 2".