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The Zones panel allows you to display or hide the zones on the map.

If you click on a zone, you’ll also see some useful insights in the panel:

1. Zone pressures, where you find:
   1. The number of customer points with low pressure: less than 20 m for international system networks and less than 30 psi for US customary networks.
   2. The number of junctions with high pressure: more than 60 m for international system networks and more than 90 psi for US customary networks.
2. A list of the zone boundary valves, pretty useful when changing pressure zones boundaries.
3. Inlets and outlets in each sector. This will help you understand how the DMAs are supplied and notice if any value is outside the expected range.

Hovering over or clicking the zone, you’ll receive information about:

• Minimum and maximum zone pressures: of all the junctions in the zones.
• Minimum and maximum customer point pressure
• Total customer points in the zone
• Net flow data both from the simulation data and from the readings (if any)
• Efficiency percentage, if there are live demands for customer points.
• Estimated leakage for the zone (only available for networks that meet specific requirements)
• Graphs for pressure insights, net flow, efficiency, and estimated leakage (if available)

Read our article on water balance insights to learn more about net flow, efficiency and estimated leakage in zones.