Q. What exactly is a water pressure gauge and how does it function?

Specifically a water pressure gauge is a pressure gauge that displays the water pressure in a given system. It is possible to read the pressure of the system by observing the direction in which the water in the tube rises when pressure is applied to either side of the gauge. If we want to check the pressure regulator in the house and make sure it is still functioning we may use them to measure the pressure within the home. They are also used in systems where pressure is essential such as those used for water purification or reverse osmosis.