How long can one 5-gallon tank of AFFF last when used with an in-line eductor?

When using an in-line eductor with a 5-gallon tank of Aqueous Film-Forming Foam (AFFF), the duration it can last is influenced by the flow rate through the eductor and the rate at which the foam concentrate is drawn from the tank. Generally, the consumption rate for a 5-gallon tank of AFFF is approximately 60 seconds when using an in-line eductor. This duration allows for effective use of the foam extinguishing agent, as it provides enough time to reach and cover the fire area properly.

AFFF is designed to quickly suppress flammable liquid fires by forming a blanket over the surface of the liquid, preventing the release of flammable vapors and reducing the fire's intensity. The timing is crucial, as it ensures that the firefighting personnel can use the foam effectively during emergencies. Therefore, with a proper understanding of AFFF usage and characteristics, it is reasonable to conclude that a 5-gallon tank will last about 60 seconds under typical operational conditions with an in-line eductor.