There is no possibility that the water in the supply pipeline will freeze, because it is in the pipe only for a short period of time, and the rest of the time the pipe is empty. When laying a pipeline intended for households. domestic drain, it is necessary to observe the correct slope of the route during installation. For a pipe with a diameter of 110 mm, the difference should be 20 mm per 1 meter, for a pipe with a diameter of 160 mm, the difference should be 8 mm per 1 meter.