Which statement about pesticide equipment cleanup is false?

The statement regarding leaving pesticide residues in the spray tank when changing products is false because proper cleaning of pesticide application equipment is crucial to avoid contamination and adverse reactions between different chemicals. Failing to clean the spray tank can lead to product interactions that may diminish effectiveness or create harmful residues that could impact the environment, non-target organisms, and human health.

Thorough cleaning ensures that the sprayer is free from potential residues and is ready for the next application, enabling the applicator to maintain compliance with safety regulations and best practices in pest management. The other statements reflect correct practices: adding oil helps preserve the tank, rinsing with a water-detergent solution removes residues, and utilizing commercial tank-cleaning compounds aids in ensuring thorough removal of all pesticide traces.