How do I open an existing SewerGEMS model inside ArcMap?
First, open ArcMap. Then, click the SewerGEMS V8i menu, choose “Project” > Add Existing Project. Select your SewerGEMS model and then click the blue folder icon in the next window, to attach a geodatabase. A separate geodatabase is necessary for ArcMap to interact with the SewerGEMS model. It is recommended that you save a new geodatabase. For example, name it MyModelgdb.mdb and save it in the same folder as your SewerGEMS model. Ensure that you assign the correct coordinate system/spatial reference, before clicking OK in the window that shows the blue folder icon. When you click OK, the Table of Contents will be populated with the SewerGEMS element types and your model should appear. You may need to use the zoom extents button or zoom to an element using the search button at the top of the SewerGEMS properties window.