What is meant by static pressure in irrigation systems?

Static pressure in irrigation systems refers to the pressure that exists in the system when water is not flowing. This means it is the measure of the potential energy available in the water within the system, and it is crucial for understanding how water behaves in pipes and other components of the irrigation system when the system is at rest.

When evaluating irrigation designs or troubleshooting systems, knowing the static pressure allows system operators to calculate the necessary dynamics when the system transitions from a standstill to flow. It also helps in assessing the maximum pressure available for potential use, which is essential for ensuring that irrigation systems can effectively distribute water under various conditions.

Other options, like the pressure during water flow, pressure lost in pipes, or the pressure needed to initiate flow, pertain to different aspects of system dynamics but do not define static pressure accurately.