Easiest way to measure water pressure - help

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#1

Originally Posted By: Brian
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I am trying to install an industrial proportioning unit and in order to select the correct one I need to determine the water pressure coming into the unit. I know the flow rate and the tubing diameter. Can I calculate the water pressure from these parameters or is there a simple gauge/meter I can use or a general rule of thumb? Any help would be most appreciated.

#2

Originally Posted By: jpeck
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You should be able to find a pressure gage at the Big Orange Box (and other home improvement and hardware stores), one that is simple and inexpensive. These screw on hose bibb threads. Do you have a hose bibb on that system? If not, just install an adapter to your pipe size.

–
Jerry Peck


South Florida

#3

Originally Posted By: bkelly1
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Typical house in everyones area, what pressure are you looking for? And what about a well?

#4

Originally Posted By: jpope
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Generally, pressure should be within the range of 60 to 80 psi even with a well system.


The proportioning unit should be listed with its recommended pressure. Is it not?

--
Jeff Pope
JPI Home Inspection Service
"At JPI, we'll help you look better"
(661) 212-0738

#5

Originally Posted By: Mike Parks
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Jeff


I respect your opinons.

My well pump is set at 40- 60 psi.

Where did you get your reference?

Mike P.

#6

Originally Posted By: jpope
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Actually Mike, most of the well pumps I’ve seen are listed as 60 psi max. working pressure. So the 60 - 80 psi doesn’t apply for well pumps icon_redface.gif

–
Jeff Pope


JPI Home Inspection Service


“At JPI, we’ll help you look better”


(661) 212-0738

#7

Originally Posted By: cradan
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Most homes in urban and suburban areas are provided with water by the town. Typically, the water mains in residential areas are 4" to 12" in diameter, and run several feet below the street level. Smaller pipes, usually 1/2" or 3/4" diameter, run from city mains into individual dwellings. The water is normally supplied at a pressure of 40 to 70 psi.


-Carson Dunlap, Home Reference Book, copyright 2001, 19th ed.

I've only done just over 100 inspections, but check the static H2O pressure on virtually all of them. Public supplies range typically from about 40 to 60 or 65, I'm told some are higher (i.e. how far is your property from the nearest pumping station). Of the private supplies we've checked, pressure runs from 32 psi to 60 psi, often on the lower end of that range, i.e. @ 40 psi.

CD also suggests that when inbound pressures are known to exceed 80 psi, that a pressure regulator be installed to "prevent leaks at fixtures, stress on appliance hoses and possible broken pipe joints."

--
Chris
http://www.inspect4me.com
Chicago Illinois Home Inspections