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  #31  
Old 07-18-2012, 10:45 AM
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FIMCO-MEISTER FIMCO-MEISTER is offline
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Okay lets use 30 gpm
With our aptly named Badger Meter at 1" there will be 2.5psi pressure loss at the meter.
http://www.badgermeter.com/getdoc/96...d-t-1-pdf.aspx
3/4" Badger meter the max they will measure it for is 25gpm to only have 2.5psi pressure loss would have one around 15gpm.
http://www.badgermeter.com/getdoc/2b..._8x4_4-BZ.aspx

Regardless though boots is correct that the 1" copper service is the limiting factor since 15gpm is the max one can use without exceeding 5fps
http://www.irrigationtutorials.com/copperloss.htm
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  #32  
Old 07-18-2012, 11:07 AM
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Quote:
Originally Posted by FIMCO-MEISTER View Post
I've got tired head boots so I'll do my math in the morning but let's say we have 100' of 1" copper before the meter. PVB for back flow. Use the ops 70psi static. What is the max zone size with a 5/8 meter and what is the max zone size 1" meter. Forget the surcharge for now.
With modern 5/8~3/4 meters (the loss curve below is from a Badger 5/8~3/4 meter) there isn't any advantage gained by a switch to a one-inch meter, when there's a long run of copper upstream. The copper is the limiting factor, especially if you are going to pay attention to water velocity.
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  #33  
Old 07-18-2012, 11:47 AM
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FIMCO-MEISTER FIMCO-MEISTER is offline
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Did I not agree with you in my last post? Did I not acknowledge the rightness of your mind? Do I need to grovel?

Having said that I've seen some big increases in flow from swapping street meters. Especially if its one of those true 5/8 meters with the s copper on each side of it.
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  #34  
Old 07-18-2012, 12:13 PM
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Quote:
Originally Posted by FIMCO-MEISTER View Post
Did I not agree with you in my last post? Did I not acknowledge the rightness of your mind? Do I need to grovel?

Having said that I've seen some big increases in flow from swapping street meters. Especially if its one of those true 5/8 meters with the s copper on each side of it.
no groveling required - I never saw your post - I was working on making images from charts
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  #35  
Old 07-18-2012, 11:12 PM
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This is an interesting topic so what is the max zone size for each meter?
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  #36  
Old 07-19-2012, 07:18 AM
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I saw enough 20 gpm systems fed from true 5/8 meters to know the meters can run at max speed and no worries
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  #37  
Old 07-19-2012, 02:02 PM
ls3c6 ls3c6 is offline
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system is being installed as we speak, i suppose if i run each zone and it doesn't send water HEAD TO HEAD then i complain, until then we can only speculate
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  #38  
Old 07-19-2012, 03:28 PM
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Originally Posted by ls3c6 View Post
system is being installed as we speak, i suppose if i run each zone and it doesn't send water HEAD TO HEAD then i complain, until then we can only speculate
you call city hall and order them to raise the water pressure
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  #39  
Old 07-19-2012, 05:08 PM
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Or take a walk downstairs and see if there is a PRV, if so , turn it up.
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  #40  
Old 07-19-2012, 07:22 PM
bx24 bx24 is offline
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Quote:
Originally Posted by ls3c6 View Post
system is being installed as we speak, i suppose if i run each zone and it doesn't send water HEAD TO HEAD then i complain, until then we can only speculate
That is why I install heads 5 ft under max throw when I measure max PSI..I could do 33 easy but do 25 ft. Well worth it..Heads are cheap and keep customer happy.
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