Adding Master Bath on shared wall with another upstairs bath
I am currently in the process of adding a master bathroom on the second floor of my 1927 home. It shares a wall with another 2nd floor upstairs bath. So far i have cut into the cast iron stack and put in the following (see pictures below):
I am wondering if anything here is jumping out at anyone as against code in (hopefully if i'm lucky someone from ohio/summit county will see this)
Current upstairs bath (on opposite side of new master bath):
New Upstairs bath:
Tied into a 4" cast iron stack that runs straight up through the roof (nothing is tied in above the 1 1/2" sink drain-line you see from the bath on the opposite wall)(I secured the 4" cast iron stack with a steel clamp tied into the studs on either side)
My plan is to have a toilet right where you see the flange, then before the flange tie in to the 3x3x2 wye pictured with another 2x2x2 wye (sitting on the floor in line with the installed 3x3x2 wye) take a hubless 45 to the left run 2" pipe ~2' over to a trap for a shower drain, then off the straight end of the 2x2x2 wye run ~8' of 2" pip to a double sink vanity on the other side of the room (roughly behind the perspective of the picture above) then vent with a mechanical valve or run a vent up into the attic and tie back into the cast iron stack (ugg really don't want to do...)
Before i drill a permanent 2.5" hole in my 10" joist for the shower drain (i know at least 2" away from the top of the joist...) I would like to know:
-Does my plan sound correct?
-Anything jump out at anyone that screams CODE VIOLATION?
Thanks for your interest and help!
Re-do with a few questions
Finally got back around to this project. Have redone it a little, wondering if this is acceptable?
Main questions are:
1. Anything jumping out as stupid or wrong?
2. Is the venting correct in my diagram?
2. Do I need to do a separate vent to the left of the vertical run for the opposing wall sink?
3. Can I use a 90 Degree 3" turn with a 2" inlet for a toilet (Or should I revert to the original configuration shown in the second picture from the top of the thread with a WYE between the 90 and the stack)?
4. Am I allowed to use a 3" to 4" rubber adapter to tie PVC to ABS for the top of my vent before it exits through my roof?