Which is an advantage when operating in an open relay?

Operating in an open relay offers the advantage of eliminating pressure surges and providing a consistent supply of water. In fire suppression scenarios, maintaining a steady and reliable flow of water is crucial for effective operations. An open relay system allows water to flow freely from the source, preventing situations where pressure could fluctuate due to valve manipulations or other constraints. This consistency is essential for firefighters, as it ensures that they have the water needed to effectively combat the fire without interruptions or unpredictable changes in water supply that can hinder their efforts.

While other aspects of operations, such as operational costs, water availability, and personnel experience, may also play important roles in overall fire suppression strategies, the ability to maintain a stable and reliable water supply stands out as a primary benefit of operating in an open relay system.