** WARNING 305552** The flow path is not completely closed at valve gate group "%s" that contains node %d. Ensure that all tetrahedral elements in the cross section of the valve gate have been assigned the valve gate property.
Assign the valve gate property to all tetrahedral elements in the cross section of a valve gate. If you don't, the flow path through the valve gate will remain partially open even when the valve gate closes.
Assign the hot gate (3D) property and valve gate controller to all tetrahedral elements in the cross section of a valve gate. To do this: