The enclosures of the pumping stations and fittings offered by Uponor Infra supplement our sewage chamber and manhole system. The external skirt similar to manholes and chambers, is made from polyethylene double-wall pipes. The extrusion welding technology allows to obtain the enclosures guaranteeing that the properties of pipelines and chambers are observed. They are successfully used as the enclosure of the sewage network pumping systems or sewage pumping stations. The construction and parameters of the enclosures are selected on a case by case basis based on the guidelines of the client considering the water-soil conditions.