Centimetre or millimetre of water
Imagine you have a tube filled with water and you put your finger on one end of the tube. The force with which the water is pushing against your finger is called water pressure.
Usually, we use a meter or a foot to measure distances, but to measure water pressure, we use a centimeter or millimeter of water.
A centimeter of water means the amount of water that would be needed to fill a tube one centimeter high. Similarly, a millimeter of water would be the amount of water needed to fill a tube one millimeter high.
Sometimes we need to use this measurement in order to understand how much pressure water is exerting in certain places, like in a plumbing system, and make sure everything is working properly.
So, if someone tells you that the water pressure is 100 centimeters of water, they mean that the pressure exerted by the water in the system is equivalent to filling a tube one meter high with water.
Usually, we use a meter or a foot to measure distances, but to measure water pressure, we use a centimeter or millimeter of water.
A centimeter of water means the amount of water that would be needed to fill a tube one centimeter high. Similarly, a millimeter of water would be the amount of water needed to fill a tube one millimeter high.
Sometimes we need to use this measurement in order to understand how much pressure water is exerting in certain places, like in a plumbing system, and make sure everything is working properly.
So, if someone tells you that the water pressure is 100 centimeters of water, they mean that the pressure exerted by the water in the system is equivalent to filling a tube one meter high with water.
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