Fire-fighting control system

A method of controlling a fire-fighting device comprising:

• changing an operating state of a pump of the fire-fighting device, the pump being coupled to a tank storing a volume of fire-suppressing fluid therein, wherein the fire-fighting device includes a tank supply line extending between the tank and the pump for directing fluid from the tank to the pump, a tank fill line extending between the pump and the tank for directing fluid from the pump to the tank, and at least one tank valve for controlling fluid flow between the tank and the pump, wherein the at least one tank valve includes a tank supply valve coupled to the tank supply line and a tank fill valve coupled to the tank fill line;
• and
• automatically controlling, by a controller of the fire-fighting device, an actuation state of the at least one tank valve in response to the change in the operating state of the pump.

A programmable logic controller for use with a fire-fighting device coupled to a tank for storing a volume of fire-suppressing fluid and a pump, said programmable logic controller configured to communicate with the pump and at least one tank valve operable to control fluid flow between the tank and the pump, wherein the at least one tank valve includes a tank supply valve and a tank fill valve, the tank supply valve coupled to a tank supply line for directing fluid from the tank to the pump and the tank fill valve coupled to a tank fill line for directing fluid from the pump to the tank, said programmable logic controller having predefined logic stored thereon, wherein said programmable logic controller, when communicatively coupled to the pump and the at least one tank valve, automatically controls an actuation state of the at least one tank valve in response to a change in operation of the pump.