Little Donkey Pump - A Cylinder and Piston Pump 

In this video we build a piston water pump also known in some countries as a Donkey Pump.
Its operation consists of a cylinder with a piston that, when performing a back-and-forth movement, causes water to enter and leave the pump. One-way valves or check valves make the water always enter on one side and leave on the other, thus allowing it to be carried from one level to another.
This water pump is driven by a small 12V electric motor.
This video is for educational purposes only. It's a good project for your school's science fair.
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Contents that are related to the subject of this video:
Water pump; Centrifugal pump; hydraulic pump; water movement; water fountain; venturi pump; transparent water pump