When does timing for a water shuttle operation start?

In a water shuttle operation, timing begins when the dump valve is opened on the tender. This is pivotal because opening the dump valve indicates that the water from the tanker is actively being released into the designated receiving tank or apparatus. It marks the crucial moment when water transfer begins, allowing for firefighting efforts to commence effectively.

Understanding this timing is vital for calculating response times and ensuring that resources are managed efficiently during firefighting operations. Accurate timing helps in assessing the effectiveness of the water shuttle and coordinating subsequent actions. Thus, recognizing that the shuttle operation's timing begins with the opening of the dump valve is essential for successful fireground operations.