Pressure in water systems is commonly measured in which unit?

Pressure in water systems is commonly measured in pounds per square inch (psi) because it quantifies the force exerted by the water within a given area. This measurement is widely used in various applications, including plumbing, irrigation, and municipal water systems, to ensure that the pressure is sufficient to deliver water effectively throughout the system.

Pounds per square inch (psi) provides a clear and standardized unit for understanding the pressure dynamics in systems where water moves through pipes and fixtures. While other units like feet of head can also represent pressure, they are often used in more specific contexts related to hydraulic engineering and calculations involving elevation changes. Gallons per minute (gpm) and liters per second indicate flow rate rather than pressure, measuring the volume of water flow in a certain time rather than the intensity of the force behind that flow. Therefore, psi remains the most conventional and recognized unit for measuring water pressure in numerous applications.