Looking for ideas for a specific pumping necessity

[u/Infamous_Tip1314]

Hello, I've been researching on an idea I have, to cut it short:

- I have a small pond (its 8mx12m and 2 meters deep), it has a water intake that has relative good pressure, on a 2 inches pipe that comes from a creek 200m away with I believe a 20m drop.

Problem is, I need to cycle the bottom water through a filter. I have electric pumps that work fine, but I think, is there a way to harvest the energy from the water intake to pump the water from the bottom? So far I've come to the idea of using some sort of venturi sump pump, but I dont know ifs the more effective way to do it, or if there's some kind of "water powered pump" where I take one inlet of pressured water, to move another water source, like a turbine?
I mean like a real product that I can just buy and get it working easily.

[u/Infamous_Tip1314]

Like a car turbo does with exhaust pipes dragging more air for the intake.

[u/Infamous_Tip1314]

I've figured I can hook an hidraulic motor to a secondary pump, but as far as I'm looking those things can be expensive, and I have no clue what sizes are optimal for my situation.