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  #21  
Old 08-09-2010, 05:53 PM
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Wet_Boots Wet_Boots is online now
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Happens in Texas, though. That's why they like slip x slip valves
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  #22  
Old 08-09-2010, 06:58 PM
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irritation irritation is offline
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A threaded joint is just another possible leak and I've seen many leak, not mine but they can leak. I like glue in valves but leave room for replacement.
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  #23  
Old 08-09-2010, 07:44 PM
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I see threaded valves as supplying a measure of stress relief in poly-pipe systems.
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  #24  
Old 08-09-2010, 07:50 PM
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irritation irritation is offline
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Poly mains are for pikers.
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  #25  
Old 08-09-2010, 07:57 PM
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Mike Leary Mike Leary is offline
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Poly and PVC in the hands of children:
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Last edited by Mike Leary; 08-09-2010 at 08:03 PM. Reason: Note the creative use of poly for wire sleeves, which we cut through.
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  #26  
Old 08-09-2010, 08:16 PM
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irritation irritation is offline
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I wonder what size of jumbo box was over that mess?
I would think the poly wire sleeves were more of a hassle than protection.
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  #27  
Old 08-09-2010, 08:27 PM
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Mike Leary Mike Leary is offline
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I believe there were three standards; the poly sleeve was most assuredly a hassle because we cut through it many times while rebuilding the botched system.
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  #28  
Old 08-09-2010, 10:23 PM
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jlouki01 jlouki01 is offline
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These are some of the reasons I asked my question. Here we trench pvc mostly. I do see some Poly for laterals but for the most part it's all PVC.

I personally like installing slipxslip valves but have started using threaded a bit more.

I can see a properly laid out manifold having some advantages to repairing and replacing valves ( if the installer left room ).
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  #29  
Old 08-10-2010, 09:32 AM
Kiril Kiril is offline
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Quote:
Originally Posted by Mike Leary View Post
I honestly cannot remember a valve body going bad and having to replace the manifold.
Nor I .... at least one I built .... but that doesn't mean I don't allow for easy replacement either.
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  #30  
Old 08-10-2010, 12:35 PM
Some Sprinkler Guy Some Sprinkler Guy is offline
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Well I gotta say I don't think any threaded valve is as good as a solvent weld. I rarely reuse a pvc threaded valve after its been used once before. The pvc misforms when you thread something into it. I don't trust them not to crack on the second go round.

In addition the male adapter is the weakest fitting made. I suppose you could use nipples though.
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