The pump operates without being influenced by hydrostatic pressure.
The pump is always pumping from the source, to the source, or from the container to the container. This is understood by looking at the valves, who are open or closed.
The hydrostatic pressure on the circulation device is in equilibrium, and have zero influence on the impeller since the pressure difference on the input and output is equal. The pump operates as a lever, with equal weight on both sides. Water coming down, helps pushing water up.
Every time the volume in the pump-housing is replaced, the siphon switch side. Source water moves up, and container water moves down. The pump-housing works as an water exchanger.
The valve is a new valve technology, and patent pending.
The valve is a zero-pressure operated valve. It has a solenoid connected between the outside piping, and inside the pump-housing, ensuring that the pressure over the valve is equalized before operation.
Since the technology have a lower valve on the other side of the pump housing, this valve will hold the pressure after equalization, so that the valve operated can operate freely.
This ensures a high speed, low energy operation of the valve.
If the operation is not understood from the video, please read how the valve operates to achive a zero operational pressure and very fast acting motion.
This is the first pilot, proving the patented technology with off-the-shelf products and customized tanks.
The operation show how we move 400 liters a minute, through DN100, up 2,3 meters at only 66 Watt. Normal operation for a traditional pump would use 250 Watt.
The only friction forces are from piping, and not gravity. The number of 90-degree bends are stealing efficiency. With no bends, the friction would be lower than 5 millibar, and the energy usage around 10-30 Watt.
The interesting thing with this pilot, is that if we increased height (pump-head) to 10-20 meters the friction would not increase much, and the energy usage would still be very low.