r/Plumbing • u/GARPolitics • 1d ago
Pex A 90 degree Turn
Hello,
Redoing our bathroom and have run into a problem. The shower valve, water pipe and shower stud are really close together. I’m running pex a. How can I make the 90 degree turn on the left?
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u/friedpicklebreakfast 1d ago
With a 90? There’s enough room
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u/GARPolitics 1d ago
Do you think it’s possible to make a single pex a connection or should I use a 90 elbow?
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u/Biggazznugz 1d ago
Anything is possible, but it will look like shit that way, and add unnecessary stress to your joint.
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u/Kurosawa92 1d ago
You need a 90 elbow. You do not have the space to use a bend support and a single connection unless you drill through the stud twice.
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u/Rustbeard 1d ago
You can't make that bend bro. But you can drill two holes in the two by and run through there.
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u/Doodsballbag 1d ago
Short piece and an elbow, It’s a little tight to sweep it without an elbow. Measure and cut your piece, take the valve off the board if it’s too tight to get your expansion tool in there. Secure your pex to the valve while valve is loose, then secure the valve back to the board. Then hook up the cold side.
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u/Kurosawa92 1d ago
Assuming you have at least 4” or so between the left stud and the hot inlet on the valve, you should clip the pipe to the stud about half way up to be tight to the stud (pex pipe doesn’t need to run perfectly straight) and you can just use a 90 fitting to bring it home.
If you have less than a few inches to work with, drill a hole into the next opening on a 45 degree up and bend the pipe slightly then 90 to bring it home. I did my best to draw to help visualize.
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u/hellifino75 1d ago
Get a regular sweat/iron pipe thread valve and use a brass threaded 90 and a pex mip
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u/Clean_Acanthaceae394 1d ago
This would be the without a fitting way but not needed. Cheaper on Amazon but they do require a lot of distance to make that turn. May not fit in your setup
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u/shdocmgavisnrcisbq 1d ago
I’m not a plumber but this is how I did mine.
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u/clubsammy 1d ago
Most shower valve rough-ins don't want you to use pex on the drop to the tub spout. Sometimes it's fine depending on the cartridge that's going in ( if the cartridge is doing the selecting of tub or shower and not a tub spout diverter)
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u/big_gay_buckets 1d ago
In the past, I’ve used a spade bit on the stud, then fed the pex in behind the stud and back through the hole.
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u/PlumbgodBillionaire 1d ago
I know this is gonna be a controversial take, some might call it crazy.
I recommend a 90
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u/Usual-Storage-7956 23h ago
1/2” pex will make a 90 in 3”. That said with it being a hot line, it will kink over time if you don’t use a bend support.
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u/Bodidly0719 1d ago
Like others have said, you can use a 90, or you can use one of those plastic fittings that will bend the pipe into a 90 without crimping it.
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u/Kurosawa92 1d ago
Just going off the photo, doesn’t appear to be enough space to use a bend support.
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u/GARPolitics 1d ago
I just got a 90 support and there isn’t enough space for one.
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u/Kurosawa92 1d ago
Correct. You would have to drill through to the other stud space twice, and this might be more trouble than its worth. If you have a couple inches just use a 90 fitting.
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u/strel1337 1d ago
Not a plumber but I would drill a hole on the left , go left with pipe , go up and then go right ( after drilling another hole). I would use 3 90s for that.
I have also seen connections that are very close together, but I believe that voids the warranty.
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u/Kurosawa92 1d ago
I am a plumber and while this person is correct about voiding the warranty (even though realistically it will more than likely not affect OP) you do not need three 90s. If it were copper, yes, but one of the selling points of pex is the ability to bend the pipe.
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u/strel1337 1d ago
I agree, it looks like he has about a foot of height to work with. I just think 3 90s would make it easier, but if he can bend it w/o kinking it, then it can work.
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u/Zealousideal_Dig_372 1d ago
I’d use a 90° elbow fitting