JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Theory Click one of the following links to learn about the theory behind the software: Fundamental Solution of the Gravity Flow System Surface (Gutter) System Hydraulic Boundaries Dynamic Storage Routing Hydrograph Methods Storage Chambers Hydrogen-Sulfide (H2S) Modeling Special Considerations Parent topic: Drainage and Utilities CONNECT Edition Help