Home Infrastructure Environmental Sanitation Drains Drains Description Save Drainage facilities building 4 levels Format DWG File size 5.38 MB DOWNLOAD DWG share your appreciation Related Posts Sewer distribution network Complete sedimentation pond Metal manhole 4t – d3.05m ecological latrines sewer network collector highway drainage system Esgoto – sanitary installation by-pass Aeration of drinking water treatment plant Sewer installation oxidation ditches absorption pit parshall flume biofilter system Desilter for sewage treatment plant sanitary design energy dissipator. (for rainwater) Pumping chamber - drains - structures manhole curb drain box