Re-priming and Testing

What happens here

After replacing the pipe section, the system is re-primed by reintroducing the intake into the pond. The creator manually sucks on the pipe end to initiate the siphon. Upon opening the valve at the highest point, water flows out, but the pressure is noticeably less than anticipated, and the flow is not constant, frequently stopping. He then moves to the lowest point of the pipe system and opens another valve, observing the same intermittent and low-pressure flow, which eventually stops completely. The creator expresses frustration, noting that water flow should be continuous at both the high point (valve for air release) and the low point. He ponders if the slightly squashed pipe section was indeed causing restricted flow, leading to air pockets, or if the swing check valve is failing in a low-pressure environment.

Goal: Test the water flow and system functionality after pipe replacement