Graphical Symbol For Drains & Pipes

■ A line with dashes = its symbol used for Soil pipe or combined drains

■A dotted chain Line = its Symbol used for Surface Drain

■ A Chain Line = its symbol  used for Pipes at high level

■ Full Line = its symbol used for Pipes at  skirting level

■Interrupted dotted line = its symbol used for pipes under floor

■Parallel double interrupted dotted lines = Its symbol used for Ventilating ducts, Space between the lines, Denotes width of ducts

■Flow of fluid in pipe = Its symbol used for Rise and direction of Flow

■ Flow of Fluid in Pipe = Its symbol used for Fait and direction of flow