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Try PEX Plumbing

pex, pex plumbing, pex pipe, pex tubing, pex tool, pex piping
MICHAEL MAXWELL
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Next time you need to replace pipes in your home, consider an alternative to rigid piping. PEX-AL-PEX plumbing, or PEX for short, comes in rolls, can be cut easily to any desired length, and requires no soldering and very few joint fittings. This flexible plastic piping is so easy to install that you can handle most projects quickly on your own.


Named for its sandwich-layered construction, PEX uses cross-linked polyethylene as the outside layer, aluminum as the middle layer, and another layer of poly on the inside. This piping is approved in major plumbing codes, and it's had a successful 30-year track record in Europe. It's a little more expensive than rigid copper piping, but the advantages outweigh the extra cost, because you can save money by doing the job yourself.

PEX is sold at all major hardware stores, where it's usually sold as water supply piping and infloor radiant-heat lines. When you buy it, make sure the tubing is stamped with 'NSF-61' or 'NSF pw' (for potable water), which distinguishes it from the PEX that is used only for infloor radiant heating applications.

For more information, read Easier Plumbing with PEX in the June/July 2006 issue of Mother Earth News.

12 Comments

  • John Alder2/14/2007 12:00:00 AM

    When you're running the PEX, I suggest using the Accor Push-On
    stops & supplies. They are quicker, easier than crimping on
    stops and look better when the project is finished--they also come
    with a 10-year warranty on parts & labor! I found the link to
    the products here:
    http://www.accortechnology.com/1533-SpecSheet-2a.pdfhttp://www.accortechnology.com/1533-SpecSheet-2b.pdf

  • MARK seal12/8/2006 12:00:00 AM

    all this joining with this and that seems a lot of clat all owrs
    in uk push together the poly pipe by useing same fitting pushes
    stright to the copper its worth looking at the trade name is polly
    pipe put it in search i dont have the whole web address but can
    find it if intrested send email to sealbuilders@aol.com

  • mitrellim12/8/2006 12:00:00 AM

    Howdy, Thanks for the information about PEX-AL-PEX.I have given
    up on trying to use it as unable to locate it. Instead i will use
    pex.I snooped inside a home under construction it has pex and
    copper at the end of the runs with a copper strapping( pre made
    holes for 1/2 NW 3/4" PIPE that is used to sodier copper elbows at
    the ends of the runs so fixtures are attached to copper. i AM ON A
    QUEST NOW TO LOCATE THE STRAPPING.What would be wrong with using
    regulat hose clamps with pex and the ribbed fittings?

  • BEN Komisarjevsky12/7/2006 12:00:00 AM

    Interesting. Try searching for it under Zurn Quest Pex for info.
    I have seen it in hardware stores and home improvement stores. The
    tools are expensive. Keep the info coming. God Bless

  • WINTER Star12/6/2006 12:00:00 AM

    Anyone got listings of name brands of the real PEX?PEX being
    sold out in hinterlands may or not be real deal....no one helping
    learn what is real and what is not.Also: some say regular folks
    can't buy it--real PEX only available to professionals/contractors
    --Really?My understanding was, PEX resists freeze damage: is this
    true?CAN rodents chew damage it?

  • Walter Jeffries12/1/2006 12:00:00 AM

    What about mice, rats and such critters chewing on
    PEX?

  • CM clark10/3/2006 12:00:00 AM

    I believe that the use of refined aluminum began in modern times
    after a method of refining it from bauxite ore was developed. Lead
    was the metal that troubled the Romans (and continues to cause
    problems today because of its extensive use in paint and other
    materials prior to sometime in the 1970's)

  • J. Guarnieri9/10/2006 12:00:00 AM

    Aluminum is associated with Alzheimer's dementia. If there is
    any break in the poly liner or contact with the water at the
    fittings and connections, there will be a steady leak of aluminum
    ions into the drinking supply which will then be ingested.There is
    no association, that I am aware of, with copper or iron ion
    ingestion and any human disease processes.I personally stay away
    from drinks in aluminum cans. Remember the problems the romans had
    wit

  • MARK seal9/10/2006 12:00:00 AM

    hi all in uk we been using it for year, its about 1/3 more cost
    but the time saved out way the cost by 50%I read in your comments
    that you crimp,all are fittings are push fit with a insert in the
    pipe so the grab ring on the fitting dont crush the pipe (they are
    all totally reuseables) as good looks are still needed we still use
    copper pipe from the rad that can be seen to the plastic under the
    floor ( this is push fit from copper to plastic but no insert is
    needed to the copper pipe )if i can help any more can be contacted
    at sealmrk@aol.com or www.seal-builders.com mark

  • MARK seal9/10/2006 12:00:00 AM

    we use a pipe called polybutelene and as far as i know it all
    plastic no other thing in it that y we have to use inserts at the
    joints. Its uesd for hot cold water, heating,and anywere you need
    water

  • BENNIE WOLFE9/9/2006 12:00:00 AM

    As a licensed plumber and pex installer; read, learn and
    understand all you can before using a new product.Comments:
    alum-pex is not needed for potable water it is for RADIANT
    systems(heat loss). The 3" radius bend mentioned is for
    1/2"ID,5"-6" for 3/4".When cutting use a shearing/slicing
    action(roll pipe one way,shear the other)to reduce crushing. As
    stated PEX will try to retain its shape,rolled pipe is hard to use
    for sloped systems,it can be purchased in straight lengths. Be
    careful when discussing sizes, crimp fittings or sized by pipe ID,
    compression by OD. The crimp tools are costly but more efficent, a
    single tool that will crimp 1/2" and 3/4" is available. The
    flexable properties of PEX have many advantages including reduced
    water hammer but create higher flow restrictions.When installing to
    a group of fixtures, run 3/4" then branch to each with 1/2". The
    chrome plated stops for under sink use can be purchased for
    compression or crimp installation and the fixture connectors with
    cone shaped ends are also available. If running outside from one
    building to another for distances over about 30' consider using PVC
    if freeze protected and if exposed to sunlight make sure the PEX is
    UV resistant or wraped.Use common sense,don't cut corners and work
    safe.

  • mitrellim9/8/2006 12:00:00 AM

    Hi, thank you for this article i am excited to use Pex al Pex in
    my 101 year old grand home in NEvbraska. But i have struck out in
    trying to find anyone in Oregon oor Nebraska who has ever heard of
    it. Question come to mind about the life of the product. Regular
    pex had a warrantry of 25 years is Pex Al Pex warranted for a
    longer time?Were can one get more information about the plumbing
    and or purchase it?Thanks again for your publication i enjoy
    reading it every month.Tim

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