PB Yard Service Repair ?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by theestimator1, Nov 19, 2008.

  1. theestimator1

    theestimator1 New Member

    Messages:
    10
    I will probably have to replace a leaking section of 3/4†Underground Polybutylene in a 150ft long Yard Service. I was thinking about using 3/4†PEX and Qest compression fittings because it’s easy (I am in the electrical trade, not plumbing). I worry about copper deteriorating underground. Is buried PEX and Qest fittings advisable or should I use something else? Thanks, Marty
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,153
    Location:
    New England
    There have been some questions about Quest. You'd want to use a larger pipe than that if you used pex since the walls are fairly thick.
  3. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego

    You mean in around 100 years??
  4. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    I question repairing a polybutylene line...
    When they go bad it is generally better to replace them.
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,837
    Location:
    Cave Creek, Arizona
    Pb

    Qest PB and PEX have the same i.d.'s, but if you join them with a PEX coupling, you have to use a pb crimp ring. But once it cracks there is a good chance it will happen again.
  6. Verdeboy

    Verdeboy In the Trades

    Messages:
    2,051
    If it's outside and underground, why not just use PVC pipe and replace the whole length?
  7. theestimator1

    theestimator1 New Member

    Messages:
    10
    Redwood made a good point. After a little reading, it sounds like the polybutylene problem will only get worse, and continue forever. Jimbo made a good point. I didn’t realize buried copper would outlast me.
    .
    Now I’m thinking, eventually, 1†Type K copper w/ sweat fittings all the way. As a temporary fix, metal insert fittings & crimp rings could connect the old polybutylene to the new copper.
    .
    Does this make sense?
    What material is used for a new 150ft residential Yard Service?
    .
    Your advice is extremely helpful, especially to an electrical person. Thank you to everyone.
  8. No sweat connections underground.


    3/4" @ 150' would be plenty


    K is the best application, you could get it in one piece, problem solved with the connection underground, with K you can make a flared connection to the meter bracket outlet.


    95% of all calls that come through my shop in relation to water service failures,


    are plastic piping.


    I can't make that up....it's just the statistic. The pipe is constantly expanding/contracting no matter what type it is.
  9. theestimator1

    theestimator1 New Member

    Messages:
    10
    Thanks Rugged,

    Unspliced type K copper does seem like the most durable and reliable material for Yard Service, although I do have one concern, pinholes.

    theestimator1
    Master Electrician
    Maryland
Similar Threads: Yard Service
Forum Title Date
Plumbing Forum, Professional & DIY Advice Leaking water service in front yard. What are my repair options? Mar 21, 2011
Plumbing Forum, Professional & DIY Advice Backyard Drainage Issue Aug 31, 2014
Plumbing Forum, Professional & DIY Advice Need Design Advice with yard hydrant Mar 25, 2014
Plumbing Forum, Professional & DIY Advice h2o leak in front yard. Sep 25, 2013
Plumbing Forum, Professional & DIY Advice Question regarding clean out placement in backyard. Jun 17, 2013

Share This Page