The Manual Control element of the Fire Rover system ensures that the Water Cannon System is used in a responsible manner.
An Automatic Water Cannon will activate if something is hot, in complete disregard people or objects in the vicinity. This can create a very dangerous situation, potentially injuring on-site personnel.
In this video, you will see that Fire Rover Operators hold back from activating the cannons until the site staff have moved out of the way. The fire is then extinguished in an effective and targeted manner.