At HAMMANN company, we keep piping systems flowing since 1997. For 20 years we successfully apply our patended COMPREX® technique to municipal networks, drinking water installations and industrial systems removing residues of various kind efficiently and sustainably. Developed by us, COMPREX® means efficient cleaning based on impulse flushing processes of air and water only – No chemicals needed. Personal site surveys by our experts allow applying COMPREX® tailored to your individual issues. Through science and innovation, we enable complete flow remediation for all kind of piping systems.