Which piece of equipment can stop the flow of water in a burst hose line if it can't be shut down at the pump?

A hose clamp is specifically designed to stop the flow of water in a burst hose line. When a hose bursts, and it is not possible to shut down the water supply at the pump, a hose clamp can be applied to the hose just upstream of the burst. This action effectively seals the section of hose to prevent water from leaking out, allowing firefighters to continue operations with the unaffected portion of the hose line.

Using a hose clamp is a standard practice in firefighting because it provides a quick and efficient way to address a sudden failure in a hose line, thus minimizing the disruption to the firefighting efforts. It is an essential tool in a firefighter's arsenal for managing equipment failures on the scene.

While other tools and equipment can be useful in firefighting scenarios, they do not serve the specific purpose of stopping water flow in the event of a hose failure as effectively as a hose clamp does.