pex to copper fixture stub outs

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RemodelBob

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what is the best method to stub out a pex supply line?

i was planning on using some of these pex to copper ells

Wirsbo%20Stub%20Ell.jpg


but I was wondering what the best way to secure them is? should i run some blocking behind them and strap to it and then put one of those copper plates with all the holes in front of it?

i have also seen some of those ells with a nailing plate on them, is that a better solution?

Terry, you seem to always have the perfect picture for these things. Do you have an example of a pretty PEX stubout?

Thanks.
Rob
 
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Rancher

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That picture brings up a question... do you need any water hammer arrestors when using PEX?

Rancher
 

Herk

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Probably the ideal way is to use a copper stub bracket and solder the stubouts to it.

CopperStubBracket.jpg
 

Herk

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Rancher said:
That picture brings up a question... do you need any water hammer arrestors when using PEX?

No - the plastic pipe is noise-limiting and absorbs the pressure variations.
 

Jadnashua

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You may have missed the suggested step...solder the el to the bracket. That should be plenty to hold it in place.
 

Terry

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No - the plastic pipe is noise-limiting and absorbs the pressure variations.

The PEX is quiet and absorbs shock.
My inspectors still like to see arrestors on washers, dishwashers and icemakers if they system is closed.

Closed would be if there is a PRV on the line, or a check valve, which the city sometimes puts at the water meter.
 
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