The transfer of the riser: the nuances of work

Hello. It is planned to transfer the toilet from the riser to a distance of 5 meters from the sewer riser. The question is: how high is the likelihood of blockages with this design, is 2 cm / m slope of the pipe enough, is it possible to connect the rest of the plumbing to this sewer pipe (D = 110), where is it better to install the audit? Thank you in advance
Anton

Expert Answer

Hello Anton

When using a sewer pipe with a diameter of 110 mm and a distance of 5 m from the toilet to the riser, a height difference of 10 cm will be sufficient for the normal functioning of the system with the occupancy recommended in SNiP (up to 60%). Other plumbing fixtures can be connected to the horizontal section, provided they have a water shutter. As for the audit, in your case it makes no sense. If clogging occurs, it will be possible to clean the pipe from the side of the toilet or at the places where the outlets of other plumbing are connected.