Assign Water Material to the Flow Part
Show all parts by holding Ctrl while middle clicking off the model.
Hide the pipe part by middle clicking on it while holding Ctrl:
Select the flow part by left clicking on it:
Open the Materials quick edit dialog in ONE of the following ways:
- Click Edit from the toolbar:
- Click Edit from the Materials context panel:
On the Material quick edit dialog, Type = Fluid
Name = Water
Click Apply.
For more about Fluid Materials