Hey folks. I'd greatly appreciate your critique of my isometric plan. This is for a bathroom addition on my house - permits are pulled (I live in Phoenix AZ - under UPC) and work is about to begin. Work will be performed by yours truly and inspected by the city.
The bathroom is quite large, so some of the drains are quite a way from each other, making it easier (I think) to vent everything individually until they tie together in the wall/attic.
In addition to the isometric drawing, I've attached a floor plan of the large bathroom which is 15'x11'. I have put in an over-sized 3" drain for the shower since it is a double with two shower heads. I've also made the double lav 2" since its so far away from where it will tie in to the main line.