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For isolation to run is one subnetwork enough?

Angiex__1

I have a water utility network, and i wanted to run the isolation trace, is one subnetwork with one subnetwork controller enough? or do they have to have pressure zones in order to run the isolation trace so that it picks up the isolation valves perfectly.

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MikeMillerGIS

I would set your filter barriers to be like this:

and here are the results:

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MikeMillerGIS

No need to use isolation valves unless you are using the isolation tier. Just use system valves. These have the isolation category. When doing your isolation trace, set the filter barrier to the isolation category.

Angiex__1

So i have isolated a a smaller section for pressure zone and tried to run the isolation trace and i have received a result like this, when i wanted the nearby valves to be closed.

MikeMillerGIS

Yes, but that could cause some performance issues. Only one way to find out.

Angiex__1

can i have system tier with one subnetwork controller and run the isolation trace for a city like half of new york?

MikeMillerGIS

1 tier, 1 subnetwork is enough. Although with a large systems with a lot of controller, if will be faster to run the isolation trace on the pressure tier that is broken down into multiple subnetworks.

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