We have a few things at work whose instructions say to run water through them at a specific pressure (in pounds per square inch). We have a hose that attaches to our faucet and has the proper connection to the objects in question.
With the cold water faucet turned on full blast and connected to the hose, our sink will fill to the 1 gallon mark in 55 seconds. The inside radius of the business end of the hose is 1 mm. It seems like knowing those (and maybe the density of water) should be enough to calculate the water pressure, but I can’t figure out how to do so. Can anyone help me out?