Flowing water has kinetic energy associated with that fact that it is moving. It is a fact that moving water is more resistant to freezing than still water.
There could be several things wrong with your water fountain. 1. The Pump - Remove the pump and determine whether it is pumping water from the nozzle while plugged in. If not, you have a faulty pump...
well flowing rock goes in a cycle that flows from the heat from the hot core. but the water is more resistance and water does not flow like the rock cycle. that is why