So as THD increases power use decreases?


On Thu, 21 Oct 2004 10:20:17 -0300, Derek Broughton
wrote:

bluegill phil wrote:

You should add more valves on the outlet to divide the flow . Let the
pump push only as much as it takes to reach the top of your falls by
diverting pressure somewhere else. You may pump more water but for
less wasted pump life and power

If I understand you correctly, you're suggesting that you should run the
pump at full flow to save energy. This isn't actually the way these pumps
work. If you restrict the output they use _less_ energy than if you run
them wide open. Less wasted pump life and power. It seems
counterintuitive, but it's true.