How much psi does each foot of water column produce in storage tanks?

The correct answer is based on the relationship between the height of a water column and the pressure it exerts due to gravity. Specifically, every foot of water generates a pressure approximately equal to 0.433 pounds per square inch (psi). This value derives from the formula that relates the density of water, the acceleration due to gravity, and the height of the water column.

Understanding this concept is essential for water system operators, as it helps in calculating various aspects of water storage and distribution systems, ensuring appropriate pressures are maintained for efficient system operation. This understanding aids in designing storage tanks, managing pump systems, and ensuring adequate water pressure for consumers.

Other values such as 0.5 psi or 1 psi represent incorrect conversions or approximations of water pressure, and 0.333 psi does not accurately align with the well-established physical principle governing water pressure from a vertical column. Therefore, recognizing that each foot of water column exerts approximately 0.433 psi is crucial for accurate calculations in water systems.