Pipe systems Download the brochure SERFIM Eau’s skills cover all pipe laying techniques, whatever the environment, diameter, type of piping and depth. Assigned projects are wide in scope: laying drinking water networks, sewage disposal, irrigation, fire hydrants, heating networks, etc., up to and including diameters of 2000 ; any type of pipe: cast iron, reinforced concrete, polypropylene, steel and stainless steel ; in town, country, in mountain and rocky areas ; special skills: cantilevering, shaft sinking, modification of water levels, shoring at depth.