Deck Integrated Fire Fighting System (DIFFS) is specially developed to extinguish fire on helidecks in accordance to CAP437 standard and regulations. The system consists of a skid which processes firewater inflow to output foam or water and then piped to multiple flush nozzles. In case of fire, these nozzles spray water or foam evenly onto the deck. The system can be actuated automatically by UV/IR flame detectors or manually by pushbutton/Deluge Manual Release