u/ColateralD4mage

Howdy all, I seem to have a venting problem in my double wide bathroom remodel. Only 1 fixture, the shower, is tied into a roof vent. The rest use AAVs. The old tub was a decked tub, so they hid the AAV under that. Our new tub is a clawfoot, and there is no way to hide the AAV. Do you think it is possible to simply not place an AAV on the tub drain line and just rely on the two sink AAVs to vent the tub since they are up drain of the tub? (And within 6', as per code) Image and plans attached. Idaho code is based on UPC 2015.

I'm happy to provide any needed clarification.

Thanks!