What is the purpose of bleed valves located at the ends of the spray boom?

The purpose of bleed valves located at the ends of the spray boom is to prevent pressure from building up from trapped air. In aerial application, when a system is under pressure, any trapped air can create inconsistent spray patterns and may lead to uneven chemical application. By enabling the release of this trapped air, bleed valves ensure that the spray system can operate efficiently and effectively. This helps maintain accurate application rates and improves the overall performance of the spraying operation. This is particularly important in aerial applications, where precision is crucial for both the efficacy of the treatment and environmental safety.