odd soil pipe tee and boss

[adp]

Hi,
I am looking to change the toilet in bathroom at first floor to back to wall one.
I removed the soil Stack box and found the tee and boss very odd as shown in the picture.(sorry, the pictures need turn 90 degree or 180. ). Above the tee there is boss to sink waste. Below are four bosses which looks attached to a coupling ring or the ring is actually a part of the tee? One of the boss conects to bath waste.
I plan to get the tee replaced and turn 90 degree. To cut the pipe isn't easy. I may need to remove other soil stack box below the ceiling to cut the pipe and fit a slip coupler then to mount the new tee.
Alternatively is it possible to cut the ring where the four bosses connected by using a multi-tool carefully then I can cut the soil pipe below floor board?

Or is it possible to turn the tee 90 degree without damage the tee after disconnect the pan and waste pipe.

Thank you very much.

 

[AWheating]

looks like your branch (tee) is glued into a manifold at the floor level. you will probably have to cut the soil from below and replace the sections you want to alter.


at a guess it looks like marley fittings. check out page 13 onward of there guide.

http://www.marleyplumbinganddrainage.com/uploads/docs/1289.pdf

 

[Chalked]

I think the tee will turn 90 degrees. Won't harm trying anyway .

 

[AWheating]

not if its glued into the manifold.

 

[adp]

Thank you guys very much indeed. You are really marvellous knowing everything I don't know.
It seems I need to open the stack box in the ground floor room and cut the pipe below ceiling to get the tee replaced. The collar boss was solvent welded.

 

[stevetheplumber]

looks like the branch has been cemented into the collar belowas said probably easiest to cut below and rerun it