05 · Pressure map

What it is

• A thematic map colors nodes or pipes by a metric (pressure, velocity, loss). It highlights critical areas at a glance.

How to view it

• In View, pick the node metric Pressure.
• For pipes, pick Velocity or Headloss.
• The canvas applies colors and shows a legend (bands).
• To show flow direction, enable Flow direction and arrows will render on pipes.

Labels and readability

• In View you can choose what labels show: pressure/elevation for nodes and diameter/velocity/flow/dH for pipes.
• Adjust label size and offsets to keep the map readable.

Quick interpretation

• Cool colors (blue/green): acceptable pressures.
• Warm colors (orange/red): low pressures or high velocities.
• Persistent red zones often mean undersized pipes or missing boost.

Nodes vs pipes

• Nodes: pressure available; below-minimum means deficient service.
• Pipes: velocity and loss; very high velocity raises losses and surge risk.

Practical example

• After “Run Calc,” enable Pressure on nodes. Find red nodes; increase diameter on the feeder pipe or raise reservoir level, then rerun. Watch for colors turning green.