The complete Pipe2012 package that allows full-fledged hydraulic analysis of water (liquid) distribution systems is available for FREE from the following web page. This program allows you to explore numerous other useful feature of the program and all associated modules including Surge2012, Gas2012 and Steam2012.
Several Audio Visual presentations that let you explore the features of the program are available at the following web site.
Pipe2012 Videos
Pipe2012 User's Manual