FIRE: In the event of a tactical tender being deployed, it could actively participate in the fireline operations by resupplying engines. It is crucial to consider the potential problem of an engine running out of water while fighting the fire after deploying hoselays. Standard Type 3 engines typically have a water tank capacity of 500-600 gallons, which can quickly deplete. To ensure a continuous water supply, a water tender can shuttle between a water source such as a municipal water system, lake, or river, effectively keeping the engines engaged in the firefighting efforts. Alternatively, the tender can directly connect to a hoselay and provide it with water. With a tank capacity of up to 4,000 gallons, a tender can hold almost three times the amount of water compared to a Type 3 engine. During large-scale campaign fires, tactical tenders may also play a role in establishing portable water tanks at strategic locations and transporting water to these tanks. The operators of these tenders must possess proficiency in swiftly setting up portable water tanks. Additionally, they should be experts in operating the pumping apparatus and capable of troubleshooting any issues that may arise.

Disaster Support: A water truck is a vehicle designed to transport and deliver water to areas affected by disasters such as floods, fires, and earthquakes. These trucks are equipped with large tanks capable of holding thousands of gallons of water. They are used to provide water to people who have been displaced from their homes or do not have access to clean water. The water can be used for drinking, cooking, cleaning, and other essential needs. Potable water trucks can also be used as a temporary solution during water outages in homes or businesses. In addition, water trucks play a vital role in disaster relief efforts and emergency base camps. They are also used for tasks such as removing water from retention ponds, draining flooded areas to facilitate access, diverting storm drain water to treatment plants, and more.