How much pressure does one column foot of water exert?

One column foot of water exerts approximately 0.433 psi (pounds per square inch) of pressure. This is based on the hydrostatic pressure formula, where pressure increases with depth due to the weight of the water above. Since there are 12 inches in a foot, the calculation for the pressure exerted by one foot of water is derived from the density of water and the acceleration due to gravity.

In practical terms, when considering irrigation and hydraulic systems, understanding this pressure is crucial for designing systems that effectively deliver water without causing excessive stress on pipes and fittings. Knowing that one foot of water roughly equates to 0.443 psi aligns closely with standard hydrodynamic calculations used in irrigation practices, making this understanding essential for anyone working with water management systems.