peninsula sink

I’m in the middle of remodeling a house we just purchased. I have attached a photo of the “loop vent” below for our kitchen sink. The would be sink and p-trap are on the opposite side. It appears that the vent and drain dive into the same pipe as it goes into the ground (I am on slab). Sink...

I remodeled my kitchen from a separate room to half walls looking into the dining room and living room. This created a problem for the vent stack. The wall containing this stack was gone. I installed an AAV as high as I could in the half wall behind the sink. I also have the dishwasher...

We have our sink in the peninsula with the vent running through a half wall to the exterior wall where the vent stack is. The house was built in 2003. It is not code right now (6" above flood level of sink) because the vent is 34.5" from the floor and my current top mount sink is 37". We...