What is a hand water pump?
A hand water pump is simple device that pulls water up from underground. It uses mechanical motion of hands to pull the water from the underground.
It has a long handle that you move up and down. When you do this, it uses air pressure and valves to pull water up through a pipe from a well or underground water source.
It has been in use since long time and it is still used in villages and farms or in those areas where there is no electricity.
How it works?
Lets try to understand how hand water pump works with a simple DIY hand water pump model.
The below picture shows the DIY Hand water pump.
It comes in kit form which you can easily assembled by following the instruction manual. If you are interested to buy your own DIY Hand water pump, click here: https://s.click.aliexpress.com/e/_c4TQ4bJt
The following step shows how hand water pump works:
- As you pull down the handle of the pump, the piston of cylinder moves upwards.
- This creates a region of low pressure inside the cylinder.
- Because of the low pressure, water from the ground or the reservoir is pulled up into the cylinder through a one-way valve so that the pressure inside the cylinder becomes equal to the outside pressure.
4. When you pull the handle up, the water from the piston moves down.
5. It causes the water to move through the 2nd one-way valve and the water finally comes out of the spout.
6. Every time you move the handle up and down, more water is pulled up from the ground and it comes out of the spout.