When cleaning a sprayer, you should fill and flush the tank with water at least _________ times before using a cleaning solution.

Flushing the sprayer tank with water before using a cleaning solution is an important step to ensure that any residues from previous chemicals do not contaminate the new solution. Filling and flushing the tank at least five times allows for a thorough rinse, which helps to remove not only the majority of the previous chemical solution but also any particulate matter that may have settled in the tank or along the lines.

This multiple-process flushing helps to minimize the risk of chemical reactions that could occur if incompatible substances reside in the sprayer, and it aids in maintaining the performance of the equipment. Additionally, ensuring that the sprayer is properly cleaned helps protect the environment and promotes safety for the applicator and others who may come into contact with the treated areas. While fewer flushes might remove some residues, five flushes create a higher level of assurance that the tank is clean and ready for the next application.