Vent pipe in exterior wall - tee/90 bend

[patryk]

Hi. I am looking to frame my garage and separate laundry/bath area. The plumbing (vent pipe) is inside the concrete block wall. I want to extent a few pipes and hide them in the
new wall framing but not sure which approach is the way to do it.
Can I add a tee with a short 90 so that it bends along the concrete wall and runs horizontally from there through the new stud wall? Or a short 90 is not allowed for horizontal drain?

 

[Breplum]

short sweep aka vent 90 is fine, only when greater than 6" above flood rim of highest fixture being served

 

[Sponsor]

 

[patryk]

short sweep aka vent 90 is fine, only when greater than 6" above flood rim of highest fixture being served

Thank you.

How about adding a vertical stack just parallel to the main vent, so that it hides between studs, and drain the fixtures through that?

Will this work?

 

[Jeff H Young]

yes assuming, as drawn asuming there is nothing else just a vent through roof and drain below floor