Slope:
Compliance with these specifications prevents blockages in the pipe: if the gradient is too steep, there is a risk of the water shooting over the solids and clogging the drain. For this reason, the feed pipes are also installed in the downpipe of the wastewater pipe at an angle of 87° where possible - i.e. with a gradient of just 3°! This applies to branches with the same diameter as well as reduced outlets. During installation, the socket end should always point in the direction from which the water is coming! Wastewater pipes should always be laid with a slight gradient - this ensures that the pipe is sufficiently ventilated and noise levels remain low.