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  1. #1
    Join Date
    Apr 2013
    Location
    Massachusetts
    Posts
    28

    Default any disadvantages to Pex plumbing?

    I'm in the process of buying a house built in 1928 in MA. The inspection found multiple spots where brass was connected to copper, resulting in corrosion. He recommended replacing it with Pex. I've been doing a little reading and watching youtube videos, it all sounds great. Are there any downsides to replacing all supply lines in the basement with Pex up to the risers?

  2. #2
    Join Date
    Sep 2012
    Location
    Boston
    Posts
    1,004

    Default Re: any disadvantages to Pex plumbing?

    i can't think of one downside, i use it all the time.

  3. #3
    Join Date
    Aug 2007
    Posts
    7,191

    Default Re: any disadvantages to Pex plumbing?

    Pros:
    1 - It's cheap

    Cons:
    1 - Mice and rats LOVE it.
    2 - It's plastic
    I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!

  4. #4
    Join Date
    Feb 2010
    Location
    South*East
    Posts
    1,220

    Default Re: any disadvantages to Pex plumbing?

    Pex is the way to go. But your statement about copper being connected to brass, are you sure he said brass and not galvanized pipe? There is no problem with copper to brass. What may be the case in a home that age is the piping is threaded brass which is failing do to its age.
    John

  5. #5
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,736

    Default Re: any disadvantages to Pex plumbing?

    Brass has copper in it, and it doesn't corrode when attached to a copper fitting.

    PEX could be the right pipe for you. The jury is still out on PEX and the risk of plastic in drinking water. It could take decades to find out it's not safe. It was approved to be used in CALIF only 3-4 years ago, yet very few plumbers use it here.

    In the meantime, it's cheap, easy to install, has fewer connections - plumbers and DIYers love it, in places where it's to code. Just don't expose it to sun and light.

  6. #6
    Join Date
    Apr 2013
    Location
    Massachusetts
    Posts
    28

    Default Re: any disadvantages to Pex plumbing?

    Thanks! The rats/mice point is interesting, haven't seen that yet. I have two cats though, so that should help. I have no worries about it being plastic either.

    Here's a quote from my inspection report:
    "There is brass water piping that has electrolysis in a number of locations . Some areas are taped. This is older piping that is nearing the end of its life . The need to replace the brass water piping should be expected."

    I'll keep the light exposure in mind. I'm planning to (someday) finish the basement too, at which point it shouldn't be exposed.

    I'm strongly considering replacing all supply lines throughout the house and having a manifold system.

  7. #7
    Join Date
    Feb 2013
    Location
    The thumb, MI
    Posts
    54

    Default Re: any disadvantages to Pex plumbing?

    Quote Originally Posted by willsonsarah View Post
    ...Pex piping, it is basically crossed-linked polyethylene pipe that makes it undurable and long lasting...
    I'll remember that next time some environmentalist tries to convince me poly lasts forever.

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