Which term describes the process of mixing water with foam concentrate to create a foam solution?

• A. Dilution.
• B. Foam mixing.
• C. Proportioning.
• D. Blending.

Answer: (C)

Proportioning is the process of mixing water with foam concentrate to create a foam solution. In foam systems, water flows through a proportioner or eductor that meters in a precise amount of concentrate to achieve the required foam solution at a specific application ratio. This precise ratio is essential for the foam to perform correctly, providing the right expansion, stability, and coverage. Dilution is a general term for reducing concentration and doesn’t specify creating the foam solution; foam mixing or blending are vague terms that don’t describe the controlled metering into water used to form the foam solution.