Abstract: A method of lining a sewer in which an inner pipe is introduced into an eting sewer, and the space between the outer surface of the inner pipe and the inner surface of the sewer is filled with a filler. To introduce the filler into the space, at least one supply duct which preferably is provided with a delivery nozzle is introduced into the sewer until the at least one supply duct extends over the entire longitudinal length of the inner pipe. Subsequently, the at least one supply duct is removed by a withdrawal movement. During the removal of the at least one supply duct, the filler is delivered into the space through the duct or through the delivery nozzle preferably provided on the duct in an amount sufficient to completely fill the space.

Abstract: A method for producing leak-proof sites of entry for domestic connection pipes and other feed pipes into sewers. The method includes the steps of widening the site of entry of the feed pipe into the sewer, providing a barrier towards the interior of the sewer at the site of entry, providing a barrier within the feed pipe at a predetermined distance from the site of entry, introducing an expanding solidifying sealing mass into the space between the barriers so as to fill the space and any openings, fissures, or cracks found therein, clearing a path of flow from the feed pipe through the sealing mass and into the sewer, and optionally lining the flow path with a solidifying, insoluble, corrosion-resistant and non-ageing material.