How many times should empty liquid pesticide containers be rinsed to decontaminate them?

• A. 3
• B. 4
• C. 5
• D. 2

Answer: (A)

Three times. The triple rinse method is the standard way to decontaminate empty liquid pesticide containers. After emptying, fill the container with rinse water to the level recommended on the label, agitate to loosen residues, and pour the rinse water into the spray tank. Repeat this two more times. Doing three rinses significantly reduces pesticide residue, making the container safer to dispose of or recycle and ensuring the rinse water is accounted for in the spray mixture or proper disposal per label and regulations. If a label calls for more rinses or specifies a different procedure, follow that, but three rinses is the typical standard.