Sprinklers are the best way to fight a fire at the start because they detect and extinguish the fire, preventing it from spreading further. The wet riser is still linked to them. Each sprinkler head will open and spray water on fire when the sprinkler detects hot gases from a fire. Only the fire sprinklers are enabled. The others are shut. This decreases the amount of water required while also limiting any damage to areas where there is no fire. The flow is determined to ensure that there is still enough control to put out a fire, taking into account the building's size and construction.
