Got a little sleep and made it through work and am back at it...
I ended up breaking up the slab floor beyond the hub and removed the entire hub and stuck pipe giving me a clean 2" Dia pipe to put a boot on.
I got the boot installed and converted over to 2" pvc. ran the new pvc about six inches then added a Ptrap and then ran the line 4ft up from floor level.
As for the question obout the lines hook up. It is a sanitary drain line. Not storm. We ran water from the kitchen sink once the pipe was cut and water came out of the pipe. I assume this indicated its the sanitary line.
Venting has me stumped though. The old floor drain had no vent either. whoever installed it, capped the floor drain port so I am assuming there is a kitchen vent handling both?? may be wrong easily on this opinion.
I know something is still wrong because once we hooked everything up and tried running a rinse cycle on the washer, the line back filled and overflowed out the top of the pipe. I am hoping the issue is a slow drain in the kitchen that is causing the problem but not sure
The only specs I can give to let you guys have as much info as possible is this,
The drain line is 2" cast that runs from the laundry room, under the slab into the kitchen and T's into the kitchen sink drain, then the line continues across the kitchen into the bathroom and ties into the bath sink and shower. The line then goes out the foundation into the main drain line from the city service. There is a vent pipe located in the bathroom and I believe a second vent is located in the kitchen.
Now the big question is to determine if the problem is due to a clog or if this is a venting issue....'
and Yes, I bit off a big bite and hope I can chew through it ,