As the pump operator, I pulled a length of hose from my engine and connected the TTRC. It slid easily under the vehicle and proceeded to deliver copious amounts of water to cool the underside of the battery compartment. We then moved the TTRC to the inside passenger compartment to cool above the battery compartment. The design and ease of use of the TTRC is a game changer when fighting electric vehicle fires. Being able to cool the batteries with water and keep firefighters away from unpredictable thermal runoff events is a primary advantage of deploying the TTRC. It worked great and without a flaws