To meet fire incidents requiring relatively high flow rates (more than 300 gpm), what arrangement is recommended?

• A. Single Portable Tank
• B. Two Tanks
• C. Multiple Portable Water Tanks
• D. External Water Supply

Answer: (C)

Sustaining a high flow rate, like 300 gpm or more, requires a large, ready-to-use water source at the fire scene so the pump can deliver water continuously without running dry. Arranging multiple portable water tanks achieves this by increasing the total stored volume and allowing the pump to draw from a steady, low-height supply while others are being refilled. This setup minimizes interruptions and helps maintain a consistent high discharge, which is essential for larger or longer-duration fires. A single portable tank simply doesn’t provide enough water to keep flow above 300 gpm for any meaningful period, while an external water supply can be unreliable or slow to establish in some environments. Therefore, using several portable tanks arranged to feed the pump is the most reliable way to meet high-flow demands.