big water flow drill - 20 minute video

https://youtu.be/-c_1Uf0fwYo?si=RHh79Tpzhpx4IHk3

approx 100 on the video - flowing 2300 gpm - with 126 psi residual
pressure at the hydrant - they started at 141 psi iirc - on a 12 inch
main - using just one 5 inch line off the hydrant

maybe they got more gpm when the opened 2nd and 3rd outlets on the
hydrant - maybe not

bottom line - thats a very well fed hydrant - a strong hydrant - a
hydrant that can supply large amounts of water at high pressures

its possible they could flow more if they called the water department
and asked them to boost the output from their pumps or water tanks -
or they might blow up the mains under the roads - not sure - might
depend on how many elbows / turns are in the piping system

florrisant - ? missouri ?

one thought - when they test the fire truck at the factory - it sucks
water out of a pond - when a pumper is used in a big city or suburb -
it is usually connected to a hydrant - and the water from the hydrant
has more energy than the water in the pond - so the pumper operating
in the city should be able to pump more water than the pumper at the
factory - if the factory says the pumper can do 2000 gpm at 150 psi
net pump pressure at the factory - then in the city the pumper can
probably move 2500 gpm at 150 psi - maybe not

maybe the bottom line golden rule is - it takes energy to move water -
the water has to be 'energized' by the height of the water tank - or
the water departments pumps - or the fire engine pumps - and the hoses
and water mains and nozzles are always trying to steal some of that
energy