Double wye in the wall above lavs

[john simmons]

can I use a double wye in the wall to tie to lav vents together into one . The lines are 2". I know this is a little unorthodox but will the inspector fail me?

 

[john simmons]

can I use a double wye in the wall to tie to lav vents together into one . The lines are 2". I know this is a little unorthodox but will the inspector fail me?

I should add that both lavs have san tees at the waste with about 6" of pipe coming up out of the top of each santee at which point I want to 45 over to a double Wye and single vent out to to roof. the whole reason this got this way is because I used a 3" to 2" combo under the floor then a double fixture to horizontal over to a 90 and rise up through floor for wastes. I now realize I should have done the double fixture above the subfloor. not seeing two san tees and vents rising up the wall triggered a flag with the inspector.

 

[Sponsor]

 

[john simmons]

with

I should add that both lavs have san tees at the waste with about 6" of pipe coming up out of the top of each santee at which point I want to 45 over to a double Wye and single vent out to to roof. the whole reason this got this way is because I used a 3" to 2" combo under the floor then a double fixture to horizontal over to a 90 and rise up through floor for wastes. I now realize I should have done the double fixture above the subfloor. not seeing two san tees and vents rising up the wall triggered a flag with the inspector.

so I cut the 90 waste arms out and added san tees with 6" of vertical vent and want to 45 back over to central vent line about 42" off of floor. I figure the double fixture under the floor is not hurting anything.....

 

[Terry]

45 Degrees is considered vertical on the vents.
They can tie together at 42" above the floor.
The trap arms should have vents above, which means you can bring them up individual or use a doule fixture fitting above the floor.