hi there. looking at my plans my architect has my new toilet foul waste run going through the new foundations of the new single storey exstension and into the manhole at the exsterior of the new build. it all seems a bit mad when the main sewer run is running through the centre of the newbuild two meters from the new toilet,surely i can lock on to it there with the right fiitings rather than the new 6meter run to the outside and through the foundations into the manhole