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  • Pex manifold and non manifold set up

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    Last edited by maxfischersweet; 05-21-2010, 12:38 PM.

  • #2
    Re: Pex manifold and non manifold set up

    Where I'm from we used contracts with such details spelled out. Usually manifolds require some communication, size supply coming in, do you want addition ports for future use, size supplies preferred 3/8" or 1/2" etc. Sounds like lack of communication so he did it the cheapest, easiest way.

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    • #3
      Re: Pex manifold and non manifold set up

      Sorry Max,
      Things aren't the way they used to be.
      I remember when a lower price just meant a guy was more efficient.
      Now all it means is a guy is a better Bull$%!^^er.

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      • #4
        Re: Pex manifold and non manifold set up

        0000000000000000000000000000000
        Last edited by maxfischersweet; 05-21-2010, 12:38 PM.

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        • #5
          Re: Pex manifold and non manifold set up

          A home run manifold setup is neat but not mandatory.

          It should be fine, especially since he ran such large lines (if flow was of concern). You probably have the same or less head loss than a home run system plumbed in 1/2".

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          • #6
            Re: Pex manifold and non manifold set up

            We are just starting to use PEX here, just approved locally, but the biggest difference is the time it will take to get hot water to a specific fixture. You have to fill the bigger lines with water all the way to the fixture you are at. If you have a manifold system it is usually a 3/8" or more commonly 1/2" line to the fixture not the 3/4" in your case or in some or the houses we are doing 1" to 1-1/2" to the manifold and only 1/2" to the fixtures. Some of these we actually use a Brached system so we can use a recirc because it is so far from the heater, these we try to talk the owners into multiple smaller tankless water heaters which together actually cost less than the one big unit.

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            • #7
              Re: Pex manifold and non manifold set up

              we only do a manifold system when the customer specifically requests it, which almost never happens

              most people get impatient while waiting for hot water to arrive at a fixture, if you turn on the sink, it draws water to the bathroom, so you just have a second or two wait for hot water at the shower. with a manifold system, you'd have to clear the hot lines individually.

              just a matter of convenience to me. though i'm sure there are some big benefits to a manifold system, they are more costly.

              and like was previously stated, you can easily put a recirc line on the end of a branch system and make things even more convenient.
              No, it's not rocket science, it's plumbing and unlike rocket science it requires a license.

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              • #8
                Re: Pex manifold and non manifold set up

                Mojourneyman said it best. No worries. This is the exact same way copper is ran. The only reason they do this for pex is because it's cheaper to install.
                Buy cheap, buy twice.

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                • #9
                  Re: Pex manifold and non manifold set up

                  Full, one off manifold systems suck. Big waste of money and materials.
                  sigpic

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                  • #10
                    max

                    i live in the hick capital of america. fulton, indiana. all i put in are manifold systems. i'm not the cheap plumber. i strive to be the most expensive and only do upscale work. breid.........

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                    • #11
                      Re: Pex manifold and non manifold set up

                      i would like the manifold system so you can shut off one fixture if needed [ i know about the valve at the fixture ]
                      but its still nice to have a backup spot to shut it down with out suting down the house .

                      we have a saying that valves are cheep when installing new pipes then it is when you need to shut something down and there is no valve
                      Charlie

                      My seek the peek fundraiser page
                      http://observatory.mountwashington.o...nal&fr_id=1040


                      http://www.mountwashington.org/weather/conditions.php

                      new work pictures 12/09
                      http://public.fotki.com/hvachawk/

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