(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 7 of 7

Thread: 2 1/2" ABS as underground conduit, Plumbers, HELP!

  1. #1
    DIY Senior Member Homeownerinburb's Avatar
    Join Date
    Jan 2012
    Location
    Los Angeles, CA USA
    Posts
    505

    Default 2 1/2" ABS as underground conduit, Plumbers, HELP!

    Guys,

    I am looking at needing to cut and add a sweep to some underground conduit, as the arrangement of the service has changed.

    This was installed 40-50 years ago. The crud is down 5' in a hole and is tough to get at.

    What sucks: it looks like 2 1/2" abs. It certainly is All Black Stuff. But no such size exists.

    It really is down pretty far. Any deeper and I could drop a casket in there. So I am having difficulty working out exactly what it is.

    So I wonder, is it in any practical way possible to join ABS to grey pvc? That I can get in 2 1/2", including a sweep.

    I wonder if I need to just use a rubber coupling?

    Or have I got it all wrong, and the stuff is actually 2"? I would not put it past the local utility...

  2. #2
    Jack of all trades DonL's Avatar
    Join Date
    Mar 2011
    Location
    Houston, TX
    Posts
    3,644

    Default

    Quote Originally Posted by Homeownerinburb View Post
    Guys,

    I am looking at needing to cut and add a sweep to some underground conduit, as the arrangement of the service has changed.

    This was installed 40-50 years ago. The crud is down 5' in a hole and is tough to get at.

    What sucks: it looks like 2 1/2" abs. It certainly is All Black Stuff. But no such size exists.

    It really is down pretty far. Any deeper and I could drop a casket in there. So I am having difficulty working out exactly what it is.

    So I wonder, is it in any practical way possible to join ABS to grey pvc? That I can get in 2 1/2", including a sweep.

    I wonder if I need to just use a rubber coupling?

    Or have I got it all wrong, and the stuff is actually 2"? I would not put it past the local utility...

    Not sure but that sounds like it could be a Gas line.

    I would check it before I started cutting.
    Last edited by DonL; 09-06-2012 at 12:44 PM.
    Theory only works perfect in a vacuum.

    Cyber Security Protection for Windows C:\ > WWW.WinForce.Net

  3. #3
    DIY Senior Member Homeownerinburb's Avatar
    Join Date
    Jan 2012
    Location
    Los Angeles, CA USA
    Posts
    505

    Default

    Quote Originally Posted by DonL View Post
    Not sure but that sounds like it could be a Gas line.

    I would check it before I started cutting.
    No, no. The gas comes in quite elsewhere.

    The general had a utility spotter mark things.

    Got it worked thru today. Believe it or not: two #2 and one #4 aluminum, in 1 1/2" abs.

    And we are replacing the 100 panel with a 200 amp panel. It has been approved. I don't get it.

  4. #4
    Electrical Contractor/Instructor jwelectric's Avatar
    Join Date
    Jun 2007
    Location
    North Carolina
    Posts
    2,523

    Default

    the answer lies in the utility rules not the NEC.

  5. #5
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,633

    Default

    THere should be a lot of difference in the "looks" between 2 1/2" and 1 1/2" conduit.
    Licensed residential and commercial plumber

  6. #6
    DIY Senior Member BobL43's Avatar
    Join Date
    Mar 2011
    Location
    Long Island, NY
    Posts
    1,772

    Default

    Quote Originally Posted by DonL View Post
    Not sure but that sounds like it could be a Gas line.

    I would check it before I started cutting.
    Hi Don. Eating too many bean burritos makes everything sound like a gas problem
    I am definitely not a pro plumber, but I am a pro crastinator

  7. #7
    DIY Senior Member Homeownerinburb's Avatar
    Join Date
    Jan 2012
    Location
    Los Angeles, CA USA
    Posts
    505

    Default

    Quote Originally Posted by hj View Post
    THere should be a lot of difference in the "looks" between 2 1/2" and 1 1/2" conduit.
    Yeah, it was 5' down in a pit. Hard as hell to work on in any way.

Similar Threads

  1. Underground conduit and pull-box questions
    By charp in forum Electrical Forum discussion & Blog
    Replies: 18
    Last Post: 10-06-2011, 03:02 AM
  2. Underground conduit
    By JAR8832 in forum Electrical Forum discussion & Blog
    Replies: 2
    Last Post: 03-27-2010, 07:45 PM
  3. Can "any" schedule 80 PVC be used as electrical conduit...
    By itr674 in forum Electrical Forum discussion & Blog
    Replies: 17
    Last Post: 01-28-2010, 03:10 AM
  4. Can THW wire be used underground in conduit?
    By pyro9862 in forum Electrical Forum discussion & Blog
    Replies: 14
    Last Post: 12-16-2009, 06:49 PM
  5. MN-B, 12-3/GRD inside 2" PVC conduit
    By Ford2001 in forum Electrical Forum discussion & Blog
    Replies: 6
    Last Post: 09-21-2009, 07:28 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •