Replacement works of discharge conduits of sand filters at Graon potable water treatment plant

Summary

The tender concerns replacement works of the discharge conduits of sand filters at the Graon potable water treatment plant. The scope includes: replacement of 130 m of DN220 steel pipes with 110 mm stainless-steel pipes and accompanying adaptation parts; replacement of 144 m of DN409 and DN460 steel pipes with 84 m of stainless-steel pipes and accompanying adaptation parts; replacement of 8 manholes (Ø500) with Ø600 stainless steel; and rehabilitation of 8 filter basins (each 1.8 m3) including tiling removal, asbestos removal and epoxy resin coating restoration.