fire pump
I want to be able to wet down my roof if threatened by fire which is common in my area. With 62 steady pounds of city water pressure from three-quarter inch pipe and a solid stream nozzle on my fifty foot three-quarter inch garden hose, I can put water about two-thirds of the way to the peak of my roof. Would it be practical to connect a pump to my hose faucet to throw the water all the way up and if so, what kind of a pump would would it take. Thank you for your time.
truthfully, you would be better off installing a sprinkler system on the roof.
either rainbirds or shrub type heads. you’re not trying to put out a fire, you’re trying to keep your roof wet to prevent embers from igniting,
copper or gal will last better out in the sun, but there is a uv rated plastic pvc pipe that will also work.
depending on the square footage. a single valve system might suffice. especially if you install at the peak of the roof and let it drip/ drain down.
to get enough water to fight a real fire, you’ll need a gas pump with a pool to suck from. typically a 5.5- 9 horsepower centrifugal pump will supply enough water for a fire hose.
5.5 hp will put out approx. 46 gpm @ 80#
9 h.p will do 100 gpm @ 80#
prices will run $1300-2000. with hose and nozzle.
then you need gas and the pool water plus maintenance.
so the roof top sprinkler system looks better than the fire pump.
