Which of the following represents the relationship between feet of water and psi?

The relationship between feet of water and psi (pounds per square inch) is based on the principle that pressure increases with the height of the water column. Specifically, for every foot of water, the pressure at the base increases by approximately 0.433 psi. Therefore, as the height of the water column increases (more feet of water), the pressure in psi also increases.

The correct answer highlights that a higher column of water results in higher pressure, which is inversely connected to the notion that lower feet of water would yield lower pressure. Understanding this relationship is essential in wastewater management and engineering, as it helps operators gauge pressure levels in various systems based on the height of water in tanks, clarifiers, or other infrastructure.

This relationship underlines why it's crucial to consider the physical dynamics of fluids in practical applications, such as pump selection or designing wastewater treatment processes.