In the triple washing process, how much water should be filled in the container?

The triple washing process is a method used to ensure that containers that once held pesticides or other chemicals are thoroughly cleaned before disposal or recycling. During this process, it's essential to fill the container with enough water to effectively rinse out residual chemicals while also conserving water.

Filling the container with 20% of its volume is generally considered optimal. This amount provides a sufficient volume for sloshing around and ensuring that the sides and bottom of the container are scrubbed and rinsed adequately. The water should fill the container enough to cover any residues without being excessive, which might lead to waste or difficulty in handling the mixture.

This approach aligns with best practices in pest control, as ensuring thorough cleaning minimizes the risk of contamination from residual chemicals, safeguarding both public health and the environment. A smaller percentage might not provide enough rinsing action, while a larger percentage could complicate the washing process unnecessarily. Thus, 20% of the container's volume strikes an effective balance.