What must the pump have when using a hydraulic agitator?

The correct choice highlights the essential requirement for a pump used in conjunction with a hydraulic agitator, which is the capacity to deliver flow to both the boom and the agitator. This dual functionality is crucial because the agitator needs a steady flow of liquid to effectively mix and prevent sedimentation, while the boom must receive enough liquid to distribute the pesticide evenly over the targeted area.

Using a pump that can handle both flow requirements ensures that the hydraulic agitator operates properly, maintaining a consistent and effective mixture. Without this capacity, the system could become inefficient, leading to inadequate pesticide application and potential operational issues.

In contrast, other options focus on different aspects that, while potentially beneficial, do not address the core operational requirement for effective use of a hydraulic agitator. Pressure loss management, power sources, and filtration can influence performance but are not specific to the functionality needed for both the agitator and the boom flow.