In some models in WtG for water surfaces in the properties of the tanks by default are given an elevations, in the other models are given the levels. How does it (the type - elevation/level) change?
You control this by setting the Tank element property "Operating Range Type" to either Elevation or Level. You can set this globally or tank-by-tank. Reservoir elements only have the Elevation setting because they represent a HGL.
Answer Verified By: Boyan Borisov
This link has additional information on tank operating range as well.