After studying the Osma product guide and the architects bathroom layout I am uncertain how best to go about connecting the various wastes.
Chalet bungalow dormer rooms tend to be T shaped with the window at the foot of the T. I suppose the bath would fit under the window but my preferred layout is to have wash basin, bidet, toilet there and the bath tucked into a T top corner. Fortunately the floor joists are 225mm deep and run in a convenient direction so I have space to get the falls needed.
This layout brings the issue of connecting the bath waste upstream of the toilet. Good for keeping the soil pipe clean but there doesn't seem to be anything available to connect readily to the end of the pipe. Lots of choice for branches with connecting bosses but they are always where the toilet waste would enter which I think breaches the guidance.
Any thoughts?