Thats the only thing can think of.I really don't think any HOB has that much power to pump that high
x3
I have doubts that any HOb will work for that set up.
And if you were to get it running, and your power flickers. All the water in the filter will siphon into the tank. Leaving the filter running dry until you fix it.
IME, the only way to get a HOB to work in this configuration. Is to fill the tank, start the filter, then drain the tank.
IE I've had an AC keep running while doing a WC.
With all that said. And if your really wanting a water fall. That could be done, with some DIY'n techineeks.


