Sewerage applications:
In sewage distribution systems, hydrogen sulfide is the primary corrosive agent as it combines with water to form a dilute sulfuric acid. Corrosion resistant uPVC manholes provide a rigid and durable inspection structure for sewage pipelines. Cosmoplast uPVC manholes are modular in concept and thus can be custom built in a variety of heights and diameters to enable their use as inspection or access chambers.
Landfill applications:
Concrete manholes used in leachate lines are attacked and weakened by the corrosive nature
of the run off involved. As uPVC is an inert material to all but the most aggressive of materials, it is thus the ideal choice for use in such applications.