Is this the best fitting? Replacing cast iron stack

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just when I thought this was solved… the long sweep 3” that connect to the closet bend protrudes into the ceiling below the 8’ mark and I want to avoid boxing out the ceiling at all costs. See photo below. I also tried swapping out the 3” long sweet for a standard 3” san tee however that puts my 2” inlet positioned way too high for proper pitch throughout the rest of the 2” run…. I believe I’m back to the original idea using the 3” san tee with the 2” side outlet unless anyone has a better idea??
 

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My only saving grace could be if crown molding covered the long sweep as it isn’t eating into the room that much…
 
Use the wisconsin aka side inlet San. Tee. And rest easy about it, it’s fine.
 
The combo isn't right anyway. Your vent for the toilet is below the flow line of the horizontal. Your combo should be a santee
 
Also it looks to me like that stud pocket will handle both pipes I don't think they need to tie together right there in that exact spot.
 
I see, I didn’t realize the vent was below the combo until you pointed it out. The issue is, my 2” inlet needs to end up exactly where it is in the photo in order for the 2” run to maintain proper pitch. I can’t fit a 3” san tee below my 2” street san tee because the 3” toilet pipe would be below my finished ceiling. A drop ceiling isn’t an option
 
I can get away with the combo with crown molding. It looks like these are my two options. At this point I’m now leaning towards the Wisconsin fitting even though I’d have to use those two 90 elbows in an S shape.

which is the better solution?
 

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This is how I'd do it. I meant to send this earlier. I didn't realize it didn't send.
 
I like this however it won’t be possible since I need the room in stud cavity to house two thickly insulated radiator supply/return lines that will be going into the master bathroom.

which is my better option at this point?
 
The combo just plain doesn't work. The Wisconsin fitting just plain isn't legal.
 
Use the wisconsin in the vertical position.

If I twist the Wisconsin fitting I eliminate the need for those two LT 90 elbows. I now use a 45 to my 2” run and a 45 to my 3” run. This should give optimal flow.

The Wisconsin fitting does have a sanitary T 2” inlet so everything seems perfect now.
 

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If I twist the Wisconsin fitting I eliminate the need for those two LT 90 elbows. I now use a 45 to my 2” run and a 45 to my 3” run. This should give optimal flow.

The Wisconsin fitting does have a sanitary T 2” inlet so everything seems perfect now.
That looks great. I’d hire you.
 
I know you want to be told this is right and good, but it isn't.

When it comes down to it it's your house and you can do what you want. So do that. I see poop shooting into your sink drains. Then hair getting caught on the turn. Then a poop hair pie growing until you need to find a way to clean it.

The intersection is too busy. We recently have stuff way less if-y come up as a problem.
 
There are thousands of Wisconsin’s working in my city. It works fine, especially so with pvc.
http://forms.iapmo.org/email_marketing/codespotlight/2017/Jun15.htm
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The fitting used in this thread is the drainage pattern. The OP posted a pic of it and described it had a sweep.....see post #8 on page one. Last paragraph, first pic.
 
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Do us a favor pull the 2-inch pipe out of that fitting and then flush the toilet. Or take a bucket with two gallons of water in it and dump it into the closet bend. If there's no cross-connection then this week should be sufficient.
 
Won’t the two inch side inlet be getting cleaned by sink drainage anyway?

I could see it possibly getting gradually clogged if that two inch was a vent, but not with a sink rinsing it.
 
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