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Changing out valve do you cut the pvc or is it different for pools?

Changing out valve do you cut the pvc or is it different for pools?

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  #1  
Old 03-21-14, 11:28 AM
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Changing out valve do you cut the pvc or is it different for pools?



Changing out valve do I cut the pvc in 3 spots slid in new valve and use a coupler to glue it on to the original pipe or is there a different way/ better way of doing this?
 
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  #2  
Old 03-22-14, 04:39 AM
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Can not tell how it's put together with that close up.
Back up.
What's wrong with the old valve?
In place repairs where there is no room to move the plumbing with PVC pipe can be done with what's called repair couplings, the couplings have no rib in the center so they can be slid all the way over the pipe.
 
  #3  
Old 03-22-14, 05:37 AM
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I'm with joe on the in-place repair; I've done mine (pool filter selector valve) a couple of times.

Just got through doing some house plumbing repairs at the pump/tank area and in a couple of spots that I was replacing parts I cut back the sections so that I had a "U" bend -straight section with 90 degree fittings on both ends - that I could then simultaneously insert into corresponding pipe ends.

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  #4  
Old 03-22-14, 05:42 AM
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Joe, I'm familiar with repair fittings for copper, but I've never seen them for PVC. Wouldn't they be hard to slip over the pvc pipe like you would with copper because of the closer fit?
 
  #5  
Old 03-22-14, 09:18 AM
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I must be missing something how would a repair coupling attach to a broken valve here pic of the valve that's not broken. its 2 1/2 in btw.



How would something like help me I can't wrap it around the valve to attach it?
 
  #6  
Old 03-22-14, 10:11 AM
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You would need some 2-1/2" pipe and 3 couplers. I've seen the splices made with a Fernco type of rubber coupler also.
The biggest problem is how much movement is in the pipes. You can't easily bend them out of the way. A larger picture of your valve area would be a help.


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  #7  
Old 03-23-14, 02:58 AM
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You either need to use a true union valve, or two (or three unions in the piping system. The unions have a flat face with an O-ring seal so they require very little space to disconnect. Be aware that they ARE bit pricey.

[ATTACH=CONFIG]28750[/ATTACH] (Image courtesy of Lowes.)

[ATTACH=CONFIG]28751[/ATTACH] (Image courtesy of Praher valves.com.)
 
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  #8  
Old 03-23-14, 11:47 AM
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Not only are the unions pricey.... they're quite large for 2-1/2" pipe.
 
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