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Threaded Elbows

3K views 6 replies 2 participants last post by  mtk369 
#1 ·
I have two PEX pipes (hot and cold) going horizontally into the wall. How would I connect them to a shower valve which has the two inlets on the sides (the PEX pipes are much lower than the valve)?

My idea is to use elbows to make the pipes go vertical, and then either FNPT adapter elbows or elbows and FNPT adapters to go into the valve. My main question is should I use threaded elbows or normal elbows and straight adapters? My concern is that the elbows have to point in a certain direction and what if the point where it's snug doesn't have the elbow pointing down?

And should I use straight couplings instead of the bottom elbows I was talking about and just bend the PEX pipe?
 
#6 ·
What kind of threads are on the valve? Most are female. if yours is female then screw in pex x MIP adapters and run pex down to your supplies. I'm not understanding why you need threaded 90's. If you do use 90's, just tighten them until they line up where you want. With 1/2" pipe, you don't need to go super tight to get a good seal- hard to explain when to stop tightening- trial and error I guess
 
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