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For questions relating to the water system of a home or other building, including plumbing and fixtures, water heating, water filtering and treatment, and irrigation/sprinkler systems. Questions regarding swimming pools and spas should have the additional tags "pool" or "spa".

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How does this axial-flow propeller pump work?

As I had to work with (MUCH MUCH) bigger rotary pumps some time ago, I know that those pumps have a bearing that is lubricated using the water flowing through the pump (and not by some lube). … can rotate around its own axis (resulting in the propeller turning) and its tilt direction (resulting in a circular movement of the propellers center) Do you have any idea how this is used to pump the water
Daniel Jour's user avatar