Basement bathroom

[Oscarmeyer28]

I'm located in North west Ohio. I want to wet vent my bathroom in the basement. I have an ICF basement so I wouldn't have framed walls around the outside. This leaves me with only having the one vent in the only framed wall. I'm looking for answers/suggestions. I posed a picture of what I'm planning on doing. I want to know if this would be acceptable. I'll call the inspector this week I just want to have what I think is the correct layout before I get him involved. My question is can I use a 2" vent for this setup or do I need a 3"? Will my vent location even be good enough?

 

[Reach4]

With IPC, you could just vent the lavatory (bathroom sink), and you would not need the other vent.

 

[Sponsor]

 

[Oscarmeyer28]

Sorry spell check changed my wouldn't into would. But I want to use one vent for the whole system if possible. My walls are ICF so I can't really run a vent up them (I can cut the Styrofoam and run a 1 1/2" vent line if I absolutely have to)