Foam is typically stored in which of the following containers?

Foam is typically stored in various types of containers, notably pails, totes, barrels, and apparatus tanks. These containers are designed to safely hold foam concentrate, which is crucial for firefighting and suppression activities. The versatility of these storage methods allows for easy transportation, handling, and application of foam in emergencies.

Pails and totes are particularly common for smaller quantities of foam that can be easily handled by firefighters in the field. Barrels provide larger storage capacities, making them suitable for more extensive operations that require significant amounts of foam. Apparatus tanks are integrated into firefighting vehicles specifically designed to store and dispense foam effectively during fire suppression efforts.

In contrast, single-use bags generally do not hold up well for long-term storage of foam concentrate as they may not provide adequate protection against environmental factors. Glass containers are impractical for storing foam due to their fragility and the potential for breakage in the dynamic, high-pressure environment of firefighting. Metal drums, while suitable in some scenarios, are not the only option for foam storage, which is why the first choice is the most encompassing and correct answer.