What is the minimum pressure required for most spray heads to operate effectively?

Most spray heads require a minimum operating pressure of around 20 psi to function effectively. This pressure level is crucial as it ensures that the water is atomized properly, allowing for efficient coverage and distribution across the target area. At this pressure, spray heads can achieve a consistent spray pattern needed to adequately water plants without creating excessive mist or droplets that could be blown away by wind.

Operating below this minimum pressure can lead to poor performance, resulting in uneven watering and insufficient moisture for the plants. Additionally, at lower pressures, the spray pattern can become distorted, causing water to be delivered in an inefficient manner.

Understanding the minimum pressure requirement helps in proper system design and ensures that the irrigation setup will effectively meet the plants' needs while optimizing water usage.