In storage, what is the main purpose of agitation?

• A. To prevent sediment buildup and maintain uniform concentration and performance.
• B. To color-code the concentrate labels.
• C. To allow separation of additives.
• D. To reduce foam viscosity to zero.

Answer: (A)

Agitation in storage is used to keep the foam concentrate mixed evenly and prevent sediment from settling. Foam concentrates can separate or have solids settle over time, so if they sit unmixed, the bottom may become richer in solids and the top richer in liquids. When the concentrate is drawn for use, this can cause the actual mix to vary from what’s intended, leading to improper foam proportioning and degraded performance. Keeping the contents agitated maintains a uniform concentration and consistent performance of the foam solution. Color-coding labels, enabling separation of additives, or reducing foam viscosity to zero aren’t the purposes of agitation.