WC cubicles side by side toilets

[Les DIY]

Hi All, I do DIY at a local dance hall and we have room to fit two more ladies toilets side by side.
There is an adjacent soil stack outside that I can branch into
My question is do I connect the pans to a soil pipe inside the building in line then knock through the wall and connect to the existing soil stack or know through twice and connect the two pans outside.
Thanks Les

 

[RBG]

Hi. Do you have a pic or diagram of what you propose.

 

[ShaunCorbs]

Either is fine depending on how much space you have eg if your planning on using close coupled toilets you will have to go straight out as there’s not enough room for a tee

But if your using low level you can do either just means the pans will be a bit further out