Why is frequent calibration of spray systems important?

Frequent calibration of spray systems is vital to ensure the accuracy and effectiveness of chemical application. As nozzles are used, they can wear out over time, which ultimately affects their performance. When nozzles degrade, they may become larger or more irregular in shape, leading to increased flow rates. This can result in applying more product than intended, potentially leading to environmental and economic repercussions. Calibration helps monitor and adjust the flow rates, ensuring that the right amount of chemical is being applied to achieve effective pest control or other applications without causing harm.

The other options do not fully address the critical reasons for regular calibration. Maintaining pressure is important, but it is just one aspect of the calibration process. Claiming calibration is unimportant overlooks the significant consequences of inaccurate applications. Lastly, only checking tank levels does not encompass the broader scope of what calibration entails, which includes adjusting for nozzle wear and ensuring even distribution.