What effect does increasing pump pressure have on droplet size?

Increasing pump pressure in a spraying system has a direct impact on the droplet size produced. When the pressure is increased, the force with which the liquid is expelled through the nozzle rises. This heightened force causes the liquid to be atomized more finely, resulting in smaller droplets. Smaller droplets are often desirable for various applications, such as more effective coverage, better penetration into foliage, and improved deposition on target areas.

This dynamic is important to understand as it influences the efficiency and effectiveness of pesticide application or any liquid spraying tasks. A greater pressure creates a greater energy that disrupts the liquid into finer particles, hence leading to a reduction in droplet size. In contrast, other options would not accurately describe this relationship; for example, maintaining droplet size or only affecting the spray distance doesn't accurately reflect the science behind fluid dynamics in pump systems.