GHydraulics is a Quantum GIS plugin that allows to analyze water supply networks using EPANET. It also contains a function to calculate economic diameters based on given flowrates. The functions are accessible from the Quantum GIS plugin menu and toolbars.
Download :
http://sourceforge.net/projects/ghydraulic/files/latest/downloadofficial sites :
http://epanet.de/ghydraulics/
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