What is the recommended method for water supply during a high-rise fire?

Using standpipe systems is the recommended method for water supply during a high-rise fire because these systems are specifically designed to provide a reliable water supply directly to the floors of a tall building. Standpipe systems consist of a network of pipes that run vertically through the building, allowing firefighters to access water at various points throughout the structure without needing to transport it manually from the street level.

These systems are crucial in high-rise firefighting since they minimize the amount of hose that needs to be dragged up stairs, reducing the physical strain on firefighters and increasing efficiency. Standpipe systems can be equipped with hoses and nozzles ready for immediate use, allowing rapid deployment in firefighting efforts on upper floors where traditional methods like connecting to ground-level hydrants would be less practical and more time-consuming.

Additionally, standpipe systems are integrated into the building's design, providing a consistent and adequate water supply even in emergency situations, compared to the other methods that may have limitations or could cause delays in accessing water.