If an inch and a half line is at full capacity and more flow is required, what action should be taken?

When an inch and a half line is at full capacity and more flow is needed, the optimal response is to stretch another line. This approach allows for an increase in the overall flow rate available to combat the fire or dispense water as necessary.

Using an additional hose line enhances the firefighting capabilities without compromising the effectiveness of the existing line, which is already operating at its maximum capacity. This method ensures that the necessary volume of water can be delivered to the scene, facilitating adequate suppression efforts.

While using a larger diameter line could indeed increase flow, it may not always be feasible in the middle of a firefighting situation if resources or appropriate equipment are not readily available. Increasing nozzle pressure could lead to complications, such as managing the stress on the hose line and equipment. Reducing the length of the current line might help slightly improve flow, but it may not address the overall need for increased water capacity effectively. Therefore, stretching another line is the most practical and immediate solution to meet increased flow requirements.