getting 4X more water from hydrant

[agent yo'range]

https://youtu.be/kIuRaDwewzM?si=C23sYuFxDISY5kGq

if we understand correctly - by adding the pumper at the hydrant -
they were able to suck 4X more water (4X greater gpm) out of the
hydrant

you can probably think of this as a big energy equation

using straight hydrant pressure - you have energy from the elevated
water tank and/or the pumping station - minus the friction loss in the
pipes feeding the hydrant

by adding the pumper at the hydrant - you have energy from the
elevated water tank and/or pumping station PLUS the energy from the
pumper - minus the friction loss in the pipes feeding the hydrant

apparently it is possible to get 4X more gpm out of this hydrant
without wrecking the water system

there might be many hydrants where this is not possible - if you have
a small elevated tank that only uses a one mile long 3 inch pipe to
feed the hydrant - we would not expect the pumper to get very much
more gpm out of that hydrant - but we might be wrong

you can almost say that the pumper at the hydrant is pushing the water
'down the hill' faster - or pulling it down te hill faster

or not