What Matter Most, Water Pressure Or Water Volume?

[glen e]

Water pressure for spreading/activating water based coatings, like Hydr02, water volume to Rinse a car.....In my mind, it's that simple.

[FUNX650]

What I am interested in is using
our 3/4 inch garden hose.

Am I better off using a nossle which
provides higher water preasure, or one
that allows a large volume of water flow?

•IMO:
-Your hose can only supply the amount of
water volume/water pressure that’s available
at the hose bib.

-With that in mind:
Hose nozzles don’t increase the amount of
water volume/pressure, per se; but, a hose
nozzle—one that adjusts to different types of
“streams”—can increase the velocity of the
water by accelerating it through the nozzles’
specially designed (manufacturer specific)
narrowed-channels inside the nozzles.

{This is what’s known as harnessing the
“Bernoulli Principle” (Re: fluid dynamics)}


Nowadays...
•I stay away from brass nozzles (lead possibility)

•Accordingly, my favorite adjustable nozzles are:
-Gilmour Full Size Zinc (pistol style)
-Bon-Aire Aluminum (fireman-style)


Bob

[Farmallluvr]

I use a rubber flex nozzle for rinsing,,you push it down with your finger and it flows out like an open hose without the wasting of water when you are not using it.
I also like to use the pistol grip style that is common as I like to blast off bugs,crap off the wheels and wheel wells as well.
The side mouldings,around the mirrors,door handles, window trim and where the bumper covers meet the fenders/rear quarters all trap dirt as well so I like to give a good strong rinse in those areas.