Toilet room is small (3 feet x 4 feet), back to wall loo and corner wash basin. The back to wall toilet is against a solid wall, so I need a vertical outlet toilet going straight into the floor (which is being relayed with drainage etc). I also need drainage for a basin in the opposite corner of the room. The arrangement means that a pan connector with basin waste connection is not suitable. I know you can have a WC or stub stack without ventilation if connected to a vented drain and the floor to invert is less than 1.3m. No probs there.
But would it be OK to have two drain connections under the floor in close proximity, one direct to a toilet (rest bend etc.), and another to a 32mm basin waste. For the basin, there would effectively be a stub stack under the floor with 32mm waste disappearing into the floor. A stub stack rising through the floor would look insightly in such a small room.
Thanks, Simon.