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Pex expansion joints

Every pex pipe I know of dosent need an expansion joint the pipe has enough give to expand without using an expansion joint. Plus a expansion tank which is code out west would take care of any expansion anyway.
 

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For regular pex, you shouldn't pull tight when strapping anyway. It will move quite a bit with temperature.

When you strap it, just let it relax between clips, per manufacturers instructs.
 

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Don't need them, I have never needed them.
 
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