What software to use to size subdivision domestic water supply line.

[woodstockeng]

Things are a changin'. All of my subdivisions have had 1 main for both fire and water that were sized to city/county specifications based on number of units served. However, things are changing and I have a walkable community that will have a private domestic system that will serve about 90 units. We use old (2006 LDD) and new versions (civil 3d) of autocad to do the drafting. I see there is a hydraulicad built into civil 3d, but didn't know if there is something better I should be using.

Thank you