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  #11  
Old 10-15-2013, 07:21 PM
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DanaMac DanaMac is online now
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Originally Posted by stebs View Post
wheres the 200+ psi coming from? Hard to imagine a city would be running that high of pressure in their mains... In my city we see about 70, if the city tries to go over that, they start blowing mains out of the ground...
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Originally Posted by 1idejim View Post
I would guess that 50-100 psi would be average across the country, I'm with stebbs and wonder if the op's psi is correct
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We quite often see 120-170 before the first PRV. So 200 doesn't surprise me.
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  #12  
Old 10-15-2013, 07:32 PM
socalkol socalkol is offline
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In an attempt to try to clarify that the PSI is actually that high, and where it is, here is a diagram including the pressure readings at the hose spicket right before the valves and before the PRV/entrance to the house.

Also as noted there is a hose spicket on the other side of the house that is fed from the crawl space house lines (after the PRV) measuring 65 PSI

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  #13  
Old 10-15-2013, 07:46 PM
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1idejim 1idejim is online now
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Originally Posted by socalkol View Post
In an attempt to try to clarify that the PSI is actually that high, and where it is, here is a diagram including the pressure readings at the hose spicket right before the valves and before the PRV/entrance to the house.

Also as noted there is a hose spicket on the other side of the house that is fed from the crawl space house lines (after the PRV) measuring 65 PSI

Wow! Look at the bright side, you don't need a booster pump.
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  #14  
Old 10-15-2013, 07:52 PM
jbell36 jbell36 is online now
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i'm with Dana, 60-75 psi is normal around here and what i like to see...i don't like to see the 40 psi BEFORE the back flow...i've seen up to 120 here, and i have problems with that system at least once a year

wouldn't a good solution be to put a pressure regulator in before the backflow?
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  #15  
Old 10-15-2013, 07:54 PM
socalkol socalkol is offline
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Quote:
Originally Posted by 1idejim View Post
Wow! Look at the bright side, you don't need a booster pump.
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The is always a silver lining isn't there

So what would everyones recommendation be? move my PRV that feeds the house back before the T that feeds my irrigation line?
... Or add a second PRV before my valves after we T off to the irrigation?
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  #16  
Old 10-15-2013, 07:55 PM
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DanaMac DanaMac is online now
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Originally Posted by socalkol View Post
The is always a silver lining isn't there

So what would everyones recommendation be? move my PRV that feeds the house back before the T that feeds my irrigation line?
... Or add a second PRV before my valves after we T off to the irrigation?
Add a second, that way you can regulate the pressure independently from the house.
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  #17  
Old 10-15-2013, 11:05 PM
txirrigation txirrigation is offline
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Originally Posted by DanaMac View Post
Add a second, that way you can regulate the pressure independently from the house.
Agreed. I have neve seen anything over 129, 200 is nuts. You could run into some problems if the installer took advantage of the high pressure and installed zones too big.
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  #18  
Old 10-16-2013, 12:00 AM
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cjohn2000 cjohn2000 is offline
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Originally Posted by txirrigation View Post
Agreed. I have neve seen anything over 129, 200 is nuts. You could run into some problems if the installer took advantage of the high pressure and installed zones too big.
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Exactly, like pulling 42 gpm through a 5/8" meter with 118psi static
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  #19  
Old 10-16-2013, 12:04 AM
socalkol socalkol is offline
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Right im sure it will affect my zones... But im tentatively planning to redo half the yards irrigation anyways due to the design by the building appearing anything but affective as I have one zone that is a mix of lawn/shrugs and i always wondered why the lawn was thin there. As well as 60 x 55 ft area that is covered by 3 Rainbird 5000's and appears it should have almost twice that
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  #20  
Old 10-16-2013, 12:15 AM
socalkol socalkol is offline
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Thanks again everyone for your time and help/advice. Will be installing a second PRV and starting the rework tomorrow
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