Routing shower vent around valve

[Kevin72]

I'm replacing the fixtures in our shower on the 2nd (top) floor. The old control sticks out from the wall but the new one is designed to sit more flush. This means the valve assembly needs to be mostly inside the wall.

After opening up the wall, I find the vent pipe (I think: 2-3 inch diameter black pipe) running directly behind the current valve assembly. The new valve will not fit between the wall and pipe.

Can I cut out a section of the pipe, reroute it below where the valve will go 45 degrees to the side, then 45 degrees back to attach above the valve?

 

[wwhitney]

Can I cut out a section of the pipe, reroute it below where the valve will go 45 degrees to the side, then 45 degrees back to attach above the valve?

Yes, using (4) 45 degree elbows.

Cheers, Wayne