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  #11  
Old 07-26-2011, 03:05 PM
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Buck_wheat Buck_wheat is offline
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Quote:
Originally Posted by WalkGood View Post

Now, I've seen a zone with 7 or 8 PGP's w/#7 nozzles on a 1.5" line with over 120 psi static pressure.
More than 120 PSI static on a 1.5" line & nothing broke? I set my pressure relief valves to blow off water, static or dynamic, @ 80PSI. Over that and I start blowing couplings, valves.
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  #12  
Old 07-26-2011, 03:12 PM
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irritation irritation is offline
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Quote:
Originally Posted by Buck_wheat View Post
80PSI. Over that and I start blowing couplings, valves.
Why?
Typical FL. workmanship?
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  #13  
Old 07-26-2011, 03:13 PM
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Mike Leary Mike Leary is offline
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Why?
Typical FL. workmanship?
You beat me to it.
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  #14  
Old 07-26-2011, 03:50 PM
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AI Inc AI Inc is offline
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Did ya do the math? Im willing to bet the zone was designed right on the edge. Now that its a little loose, right on the edge aint cutting it anymore.
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  #15  
Old 07-27-2011, 12:27 AM
WalkGood WalkGood is offline
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Quote:
Originally Posted by Buck_wheat View Post
More than 120 PSI static on a 1.5" line & nothing broke? I set my pressure relief valves to blow off water, static or dynamic, @ 80PSI. Over that and I start blowing couplings, valves.
It is possible the high pressure leads to leaky head seals. This is typical commercial builder systems. "Git 'er done; Git 'er wet; Git outta Dodge".
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