What is the maximum spray nozzle trajectory recommended?

The recommended maximum spray nozzle trajectory of 15 degrees is based on the goal of efficiently distributing water over an area while minimizing potential issues like drift and evaporation. When the spray angle is kept to a lower degree, it allows for more controlled application, reducing the chance of water being carried away by wind, which can occur at higher angles. This ensures that the water reaches the intended target area properly and is absorbed into the soil or foliage effectively.

Using a higher degree trajectory can lead to wastefulness due to evaporation, especially in hot and windy conditions, and may result in uneven coverage of the intended area. Therefore, keeping the spray nozzle trajectory at a maximum of 15 degrees is optimal for achieving efficient water use and maintaining proper irrigation practices.