Firefighting Water cannon

water cannons first devised use on fireboats. extinguishing fires on boats , buildings near water more difficult , dangerous before fireboats invented. first fireboat deployed in los angeles commissioned on 1 august 1919. first fireboat in new york city marine 1, deployed 1 february 1891. there may have been other fireboats elsewhere earlier.

fire trucks deliver water same force , volume of force water cannons, , have been used in riot control situations, referred water cannons outside context.