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  #1  
Old 09-23-2011, 08:39 AM
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Sprinkus Sprinkus is offline
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WM Nitro

Anyone else had this happen?
I never use these valves for installs but the existing front yard already had them installed. Figured I'd try to keep the valves all the same.
My guy glued a piece of sch 40 into the valve and heard a "crack". He pulled the pipe back out and this is what we found.
I put a piece of pipe in there to hold the crack open for the picture.
This is one of two valves that cracked. I returned them and installed my go to valves instead.
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  #2  
Old 09-23-2011, 08:53 AM
Kiril Kiril is offline
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I've had that happen on glue fittings before. The only thing I can think that could have caused it (other than a defective fitting) was dull cutters created a lip which exerted too much pressure on the fitting when inserted. At least it cracked immediately and not a couple of days after you pulled off the job.
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Old 09-23-2011, 09:44 AM
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Wet_Boots Wet_Boots is online now
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Were the front-yard valves also slip connections? As for a lip on the pipe end, you should be beveling those.
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Old 09-23-2011, 10:11 AM
Kiril Kiril is offline
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Quote:
Originally Posted by Wet_Boots View Post
As for a lip on the pipe end, you should be beveling those.
Not gonna happen on 1" and under pipe.
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Old 09-23-2011, 11:08 AM
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I bevel every single end, but this is for manifold construction and 24/7 pressurization plus water hammer.

One other thing bothers me about that valve. It looks like they just re-used the mold of the older threaded-end valve, and modified it for slip connections. But maybe that isn't a problem if the molding is done properly. The threaded-end valves are made of a different (friendlier) plastic than the slip valves.
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Old 09-23-2011, 11:26 AM
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FIMCO-MEISTER FIMCO-MEISTER is offline
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Looks like the chinese changed things on a WM product again.
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  #7  
Old 09-23-2011, 11:29 AM
Kiril Kiril is offline
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I'm thinking it is just a TX thing.
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  #8  
Old 09-23-2011, 11:50 AM
SoCalLandscapeMgmt SoCalLandscapeMgmt is online now
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It's a freakin Weathermatic! That explains it right there. You could at least use a Rain Bird DV. Sure there is a 95% chance that it won't ever turn off but at least the body won't crack!
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Old 09-23-2011, 12:04 PM
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PVC must be trickier stuff to mold than other common plastics, as witness the lack of competition for Richdel, in its early days.
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Old 09-23-2011, 02:54 PM
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Mike Leary Mike Leary is online now
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Something about slip valves bothers me.
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