No - our state references their own info.
Back. Sorry. I think I need to try to write this out clearly for myself as well as for you.
I could make the vent a little closer from the laundry/floor drain area. I haven't glued that yet . "yay". Since I have to go 6" above my flood rim at the laundry tub/stand in pipe before going any horiz. and before i hit the window above I will have to put my first trap --will be 2" for the stand pipe first. Then the trap for my laundry tub above that.
I am trying to make sure I can tie that same 2" drain from the utility to the shower. Juat have to make sure it's low enough.
If so then....
I will cut the kitchen ci pipe back some and make sure there is a floor CO before it goes under the shower floor and then wye off to the 3" branch again. I will connect it with mission couple with ss bands.
I am still worried about that toilet vent.
https://www.revisor.leg.state.mn.us/rules/?id=4715.2620
Tom, I ask on the IPC. That is what I wrote, but everywhere I look - MN kind of does "Our Code" thing.
The venting is close to UPC, but still allows a group to be vented. In order for me to do a vent on the laundry/shower combo - it would have to be a 2" vent all the up into the existing second floor. If I keep the vents seperate - I can keep that at 1.5 on this side of the plumbing room. I could tear open the wall upstairs and detached what is already connected there. Two vents from the bathroom : one from the lav and one from the tub/shower combo. From that point it connects to the 3" stack that goes up through the roof.
If I can't reach the existing vent below in the basement from the new lav without a redo of duct work, or dipping down. I have tried hard to find a way. Bugger - I don't want to add hvac work. Too much of the basement has already been finished.
So, the drain from the shower can work, if I attach it to the utility drain, but I will still need a vent line right off that, which is easier your way. I can then have a CO on the outside of that wall. Then, still run the kitchen waste on it's own but cut it back far enough and attach a CO that comes up to the floor outside of the shower floor. What's the best CO fitting in that situation? I like that idea of have a CO there, even if it for the kitchen.
If you find I am wrong about my arrangement, please let me know. I am a bit dizzy trying to follow something. I used a book years long ago they use in classes here, but handed it off. It isn't uptodate anyway.