Home Infrastructure Environmental SanitationRectangular section collector duct DescriptionRain channel to vent large amounts of water Format DWG File size 1.91 MB DOWNLOAD Related Entries Sewers Vaulted sewers design White water treatment plant Inspection Camera sewage plant french drain Reinforced concrete curb Octopol cp sewerage Processing facilities works of art in canals wayllabamba drainage network Sanitary Sewerage Plan treatment plant 3d sand trap wastewater treatment plant Evotanspiration platform - septic tank with biological filter aqueduct design Sanitary ubs drainage project Biodigester 2d and 3d Reservoir plan, night reservoirs - channels Water channel Sanitary drainage Compact drinking water treatment plant Processing facilities Manhole plans Sewer Clarifier treatment top view skp slow sand filtration storm drain well Sewer share your appreciation