Used for groundwater water supply systems. Installed buried, on a concrete base slab, above the well. The pump and/or other related equipment are installed inside. The flat area at the base of the chamber is drilled using a drill and a hole saw. The well pipe is passed vertically through the cut-out. Sealing is done with a Kompact series rubber gasket. From the pump/equipment, the water pipe runs horizontally. Wall penetration must be made through the flat surfaces and not on the rib; maximum penetration diameter Ø125 mm. Components: chamber, cover, and locking system. The chamber and cover are manufactured by rotational molding from blue polyethylene, with: – average outside diameter: 1430 mm – base diameter: 1500 mm – access: 640 mm. The locking system consists of two locks positioned diametrically opposite on the cover and an operating key. The lock is mounted so as not to affect sealing in the cover area.