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Calling all Pex Gurus - Will this work

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  • Calling all Pex Gurus - Will this work

    PEX Newbie here.
    In changing the RO of a heating drop to Pex, I noticed it CAN swivel in it's own fitting.......

    Fast forward now. Doing final measurements and prep.
    In the 2 pics below, the baseboard will hang on cleats, fixed to the wall
    Out of the wall at 6 feet apart, is 3/4 Pex Stubouts.
    The pex system I am using is Wirsbo.

    With the fact that the Pex can spin in it's own fitting, I'm thinking I want to try this route.
    There is some slop in the wall-pex for it to move in and out.
    Cut the stub, Fit the Pex Adapter, bushing reducer and then the short nipple. Short nipple/bushing will just stick out of the wall..

    This is a 2 person job but the gist would be.
    Support baseboard at the RO level. Thread nipple and wrench tight both stubouts to the baseboard.
    The Pex will *swivel* within it's own fitting....
    Tilt the unit a smigen upward to get it on it's cleats and Viola...


    Option B would be to just cleat and hang the unit.....and do similar procedure but open the wall up on both sides for wrenching and such if Plan A does not work out as intended.

    For all you Pex guru out there, will this work ?


  • #2
    Re: Calling all Pex Gurus - Will this work

    Yes it will turn but I hate that it does and rarely will try and turn a fitting. It happens by accident but it's not something I do on purpose. The way I would do it is replace the brass coupling with a brass union, problem solved.

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    • #3
      Re: Calling all Pex Gurus - Will this work

      That's not a coupler in the pic. Reducer Bushing

      In the pic, it would be baseboard - 1/2 nipple - 1/2-3/4 bushing - 3/4 pex adapter

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      • #4
        Re: Calling all Pex Gurus - Will this work

        I hope you are not using regular pex in a heating system.
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        • #5
          Re: Calling all Pex Gurus - Will this work

          Nope. It's the one rated for heat.
          It's actually a short stub. Black steel drop going to the RO.
          The pex was used so that I could *flush* the baseboard to the wall rather than piping on the sides or underneath
          Last edited by mobiledynamics; 06-05-2012, 11:17 PM.

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          • #6
            Re: Calling all Pex Gurus - Will this work

            Originally posted by mobiledynamics View Post
            That's not a coupler in the pic. Reducer Bushing

            In the pic, it would be baseboard - 1/2 nipple - 1/2-3/4 bushing - 3/4 pex adapter
            It's not a bushing. From the picture it looked like a coupling but now that I look closer I see it's a bell reducer. No matter, still the same fix. Use a 3/4x1/2 union. I also believe what I'm seeing is standard Wirsbo pex, and a sharkbite cap?

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            • #7
              Re: Calling all Pex Gurus - Will this work

              Got it on the 3/4 - 1/2 union.

              It's hePex.
              1st time using Sharkbite fittings ....
              Caps are great for roughing in stubs.
              I have some in the laundry room on copper, that has held up for 5 months already while I am busy doing other remodeling. I was quite the skeptic on the Sharkbites.
              Last edited by mobiledynamics; 06-05-2012, 11:18 PM.

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              • #8
                Re: Calling all Pex Gurus - Will this work

                Originally posted by mobiledynamics View Post
                Got it on the 3/4 - 1/2 union.

                It's hePex.
                1st time using Sharkbite fittings ....
                Caps are great for roughing in stubs.
                I have some in the laundry room on copper, that has held up for 5 months already while I am busy doing other remodeling. I was quite the skeptic on the Sharkbites.
                they are only good on temp. stubs.
                AllurePlumbing.com
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                • #9
                  Re: Calling all Pex Gurus - Will this work

                  Originally posted by Gettinit View Post
                  they are only good on temp. stubs.
                  Jeez
                  http://www.cashacme.com/_images/pdf_...B_Warranty.pdf

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                  • #10
                    Re: Calling all Pex Gurus - Will this work

                    Originally posted by ArizonaPlumber View Post
                    Ok....it is the only place/reason why I would risk my reputation and low insurance premiums. I would use them as a quick in (gut) and out. I do not use them because they (IMO) are crap. I am confident they would do ok on a soft material like pex....but why would you shell out the big bucks for it vs. pex fittings?....Better?

                    There are a lot of things you could do....I just don't.
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                    • #11
                      Re: Calling all Pex Gurus - Will this work

                      Cash Acme does not warrant the connection. The integrity of the connection is the sole responsibility of
                      the installer.
                      The above was my favorite part....this will get them out of most of their claims. Prove you installed it correctly.

                      Cash Acme, in its sole discretion, can decide whether the warranty will be honored or is void.
                      ...nice

                      The warranty life sucks. But, I will give them this, they will let you use others pipes used in conjunction with their fittings. Many manufacturers of pex and pex fittings will not allow this. Although their is a good reason for not warrantying mixed brands.
                      AllurePlumbing.com
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                      • #12
                        Re: Calling all Pex Gurus - Will this work

                        I have actually seen a shark bite pull apart. It was on pex, and it was only a two inch piece. Whuch didn't allow for expansion. So the shark bite actually split apart trying to hold on. Where the teeth dug in there was actual peelings, or ribbons whatever you want to call them

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                        • #13
                          Re: Calling all Pex Gurus - Will this work

                          Originally posted by stolen View Post
                          I have actually seen a shark bite pull apart. It was on pex, and it was only a two inch piece. Whuch didn't allow for expansion. So the shark bite actually split apart trying to hold on. Where the teeth dug in there was actual peelings, or ribbons whatever you want to call them
                          I stand corrected, they are more of a piece than I thought.
                          AllurePlumbing.com
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                          • conductor fault locating
                          • and other specialties.

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                          • #14
                            Re: Calling all Pex Gurus - Will this work

                            Before I skew my thread off...

                            I'm curious for you pro's. Would you guys use any of these so called sharkbite fittings in a closed wall ? ie; a tough spot where you can't torch but need to make a repair. Or the latter...as I see alot of angle stops going in this direction, offering quick push - inside a finished cabinet

                            I myself would never . It's sorta funny eh though, because alot of views are that you don't trust it as the joint can be rotated.
                            Which sorta surprised me when I did a couple of pex compressions, only to see it also rotates - although it's a different sorta compression I suppose ;-)

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                            • #15
                              Re: Calling all Pex Gurus - Will this work

                              So. Let me get this right. The fitting actually held to the point of just being destroyed. And that qualifies it for being junk?

                              Show me a fitting that will withstand freezing. I dare ya. And I'm talking frozen solid. And no best case scenarios either. Such as putting a fitting with water in it in the freezer. Show me a fitting in the middle of the system under a house that will not split or break or other when froze. Cantex not allowed!

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