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The tracing tools are used to view the direction of water

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flow both upstream and downstream of specific objects in a network.

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These tools are generally used when a problem is found in the network such as a

00:16

reported water quality issue and you need to trace the problem back to its source.

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It is worth noting that the tracing tools can only be used with results

00:27

in the model group window.

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Click and drag the bridge con run into the workspace to open it

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in the toolbar, click the trace and select links upstream button,

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then select a hydrant in the network.

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In this example, a hydrant in the far right DMA is selected

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immediately the entire flow path upstream of the hydrant is

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highlighted in red leading to its source at the reservoir.

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Click other hydrants in the network to see how the upstream trace changes.

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In this example, all the objects do ultimately trace back to the reservoir.

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You can also trace where water is flowing

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downstream of a specific point in the network

01:08

in the toolbar, select the trace and select links downstream button

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and then click any object in the network

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here.

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When an object close to the reservoir is selected,

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nearly the entire network is highlighted.

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But when a hydrant further in is selected,

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only a small section of the network highlights.

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These are only quick examples.

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But you can see how powerful these tools can be when you

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need to trace any kind of issue in the water network.