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.

[Angiex__1]

Can i get an example regarding this so i would understand much better?

[MikeMillerGIS · Accepted solution]

I would set your filter barriers to be like this:

and here are the results: