Background: ESRI introduced an advanced network management component called the Utility Network. When defining an ArcGIS geodatabase, users can optionally decide to include a Utility Network.
Can I construct or update my hydraulic model using an ArcGIS geodatabase that includes a Utility Network?
Yes. ModelBuilder works directly with the underlying features and therefore can work with a geodatabase whether it includes a Utility Network or not.
Using ModelBuilder to Import External Data