For the app to work properly there must be at least one domestic cold water system defined in the model. Also, the first element in the water system must be a pipe. The system must be properly modeled (no loose ends, disconnected pipes etc.).

General usage instructions are following:

1. The user sets the calculation method in Revit dialog: Mechanical Settings→Pipe Settings→Calculation→Flow. WSC implements the DIN 1988-W308 norm, so the user can set this method as well.
2. When WSC application is started, the user chooses the domestic cold water system for which the application will calculate the critical path and the total pressure loss.
3. The user can choose the color which will be applied to sections on the critical path.
4. Then the user can check the values of pressure losses in the selected system (System pressure loss and Elevation loss are both calculated, Outflowing pressure loss and Watermeter pressure loss can be added manually).
5. The final step is to create a 3D view which displays the colored critical path.

Additional usage instruction can be found in the Help dialog.

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin.

You may need to restart the Autodesk product to activate the app/plug-in.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8/8.1/10) and uninstall as you would any other application from your system.

Flow calculation is defined according to DIN 1988-W308 norm. Flow calculation formula is q = 0.25 x FU^0.5

Where:

q is water flow

FU is Fixture Units