What is the approximate height above a pressure gauge that reads 72 psi in an elevated storage tank?

The pressure gauge reading of 72 psi indicates the pressure exerted by the water in the elevated storage tank. To convert pressure (psi) into height or elevation (feet), one can use the formula that relates pressure head to the height of water in a tank. The relationship is given by the formula:

Height (in feet) = Pressure (in psi) x 2.31.

Applying this formula, we can calculate the height as follows:

Height = 72 psi x 2.31 = approximately 166.32 feet.

This calculation shows that a pressure gauge reading of 72 psi corresponds to an approximate height of 166 feet, confirming that this choice is correct. Understanding this conversion is crucial for water system operators and engineers when designing and operating water distribution systems, as it helps in ensuring adequate water pressure and supply to consumers.