Sample networks

Five ready-made networks in the Start gallery: three Indian teaching networks in metric units and EPANET's own Net1 and Net3, and what each one teaches.

Open the gallery with File > Start / Sample Networks.... Click a card to open that network. If the open project has unsaved changes, PipePilot asks before replacing it. Opening a sample also sets the defaults for new objects to match its units, so a pipe you add to a metric sample is 150 mm, not 12 mm.

The three Indian networks are synthetic teaching examples built to CPHEEO norms. They are not real towns or schemes and contain no survey data. Net1 and Net3 are EPANET's own examples, in US units; they are also on the File menu as Open Example: Net1 and Open Example: Net3.

ESR town zone

A pumped rising main fills an 18 m staged ESR that serves a looped 36-junction zone of about 8000 people at 135 lpcd. Units: SI (L/s, m, mm).

Teaches: Tank level controls, 3-point pump curve, Looped network, Daily demand pattern, CPHEEO 17 m residual.

Run it and animate the day: watch the ESR level follow the demand pattern, and the pump that is controlled by that level.
Open Report > CPHEEO Compliance... and compare Minimum 17 m (M24) with Target 21 m (M24 upper end, A23).
Open Report > Pump Curve...: the curve has three points but the first is not at zero flow, so EPANET joins them with straight lines. The window explains this.

JJM gravity village

A hill source feeds a ground service reservoir by gravity, then a branched village network for about 1500 people at 55 lpcd. Units: SI (L/s, m, mm).

Teaches: Gravity main, Branched network, PRV for a low hamlet, Rural peak factor 3.

Colour the links by Unit Headloss: most head is spent on the gravity main, where no house is connected.
Select the PRV and change its Setting to see the lower hamlet's pressures follow.
Check compliance with the Rural (JJM / A23) rule set.

Pumped rising main

A raw water intake with duty and standby pumps lifts water through a 6 km DI rising main to a balancing tank. Units: SI (L/s, m, mm).

Teaches: Duty and standby pumps, Check valve on discharge, Rising main profile, Pump operating point.

Open Report > Pump Curve... for P1 and find the operating point.
Draw a Profile Plot of head along the rising main to see where the head is lost.
Open the standby pump P2 (set Initial Status to Open) and close P1 to model a changeover.

EPA Net1

EPANET's own first example: a pumped source, one tank and nine junctions, with chlorine decay. Units: US (GPM, ft, in).

Teaches: EPANET basics, Water quality, Pump controls.

Colour the nodes by Quality to follow chlorine decay through the day.
Read the pump controls in the Browser: Data tab, Controls.

EPA Net3

EPANET's larger example: two sources, three tanks and two pumps over 97 junctions. Units: US (GPM, ft, in).

Teaches: Multiple sources, Source tracing, Larger network.

Use a larger network to practise View > Find..., View > Query... and Select Region.
See how two sources and three tanks share the supply over a day.

Large real network (Net6)

A real utility network of 3,356 nodes and 3,892 links with 34 tanks, pumps and PRVs, from the US EPA WNTR examples (Watson, Murray and Hart, 2009). Units: US (GPM, ft, in).

Teaches: Performance at scale, Many tanks and PRVs, 4-day run.

Kentucky KY10

A real Kentucky utility network of 935 nodes in state-plane coordinates, from the University of Kentucky benchmark set distributed with US EPA WNTR. Units: US (GPM, ft, in).

Teaches: Real coordinates, Pumps, PRVs and check valves, Snapshot run.