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

Thread: 3" PVC Repair Coupling

  1. #1
    DIY Junior Member ionized's Avatar
    Join Date
    Jan 2013
    Location
    Northern Virginia (NOVA)
    Posts
    3

    Angry 3" PVC Repair Coupling

    I'm new to the forums as a "poster" though I've learned much from reading about plumbing issues here in the past. I am adding a new kitchen island with a 2" PVC drain and AAV. I plan to connect to existing 3" horizontal drain using PVC WYE 3x2x3 fitting. My questions is: does the IPC allow use of 3" PVC repair couplings on both ends of the WYE? This fitting will be below existing floor and above a finished basement ceiling.

    I believe I read that IPC does not allow no-hub or Fernco in finished space unless a access panel in provided (could not find any reference other than "welded connections"). My preference is to use the repair couplings, if allowed by IPC. Thanks for any insight!

    Stan

  2. #2
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,611

    Default repair couplings

    You will either have to be one of the fastest people on Earth, or need 6 hands to install ANY 3" fitting using repair couplings. You MIGHT get one in place before it grabs the pipe, (but the odds are against it), but NEVER two of them.
    Licensed residential and commercial plumber

  3. #3
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,191
    Blog Entries
    1

    Default

    They make these for PVC


    And they are legal.

  4. #4
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,611

    Default

    quote;; no-hub or Fernco

    N0-Hub bands are designed for No-Hub cast-iron soil pipe ONLY, even though they can be fitted to plastic drainage, and "Fernco" type couplings are not allowed inside the building according to many codes. The "proper" "transition" coupling which is similar to a No-Hub but sized for plastic is allowable.
    Licensed residential and commercial plumber

  5. #5
    DIY Junior Member ionized's Avatar
    Join Date
    Jan 2013
    Location
    Northern Virginia (NOVA)
    Posts
    3

    Default

    Quote Originally Posted by hj View Post
    You will either have to be one of the fastest people on Earth, or need 6 hands to install ANY 3" fitting using repair couplings. You MIGHT get one in place before it grabs the pipe, (but the odds are against it), but NEVER two of them.
    Thanks HJ- the speed with which I would have to install each coupling is my main concern. I may opt for the connectors Terry has suggested. My concern with them though is that they will be located in inaccessible space once I replace the floor and I thought code required access for Fernco.. I did check with my inspector and he too recommended the connector Terry shows in his response.

    Thanks for getting back on my question!

  6. #6
    DIY Junior Member ionized's Avatar
    Join Date
    Jan 2013
    Location
    Northern Virginia (NOVA)
    Posts
    3

    Default

    Thanks Terry- as HJ noted I would have to work real fast with the PVC Repair couplings. From what I've read, there is a good chance the adhesive would be scraped from part of the surface as the coupling slides into place resulting in "do over". My inspector also suggested a banded coupling like you show, so I am likely to go with that. I still have an inclination to try the repair couplings in a mock-up where a fail wont matter- just to see if that can be done.

    One additional question- the sink in the island will be small prep sink only- no DW or disposal. Can I run 1 1/2" Sched. 40 rather than 2" to the existing 3" horizontal? Distance will be about 12 ft and will run thru joists. Drilling and placing 1 1/2" between the joists would be easier. Plan is to use an AAV at the island for vent.

    Thanks for your help in completing my remod!

  7. #7
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,191
    Blog Entries
    1

    Default

    A prep sink used 2" for the waste and 1.5" for the trap arm.
    That would be a good one to run by the inspector though.

    The last prep sink I did was run in 2".
    Since they had a 2x8 floor system, we ran below some of the joists, near the wall.

Similar Threads

  1. Which coupling for 3" PVC to 4" Cast Iron
    By takelargebites in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 7
    Last Post: 12-19-2011, 05:40 PM
  2. Brass pipe has same OD as 1/2"copper coupling
    By PeakXV in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 8
    Last Post: 05-06-2010, 05:43 PM
  3. "Standard" shower/tub valve repair or replace?
    By Chessiec in forum Shower & bathtub Forum & Blog
    Replies: 9
    Last Post: 04-24-2009, 07:11 AM
  4. 3" Copper to PVC Coupling?
    By jhetzig in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 3
    Last Post: 04-24-2006, 06:16 AM
  5. Where to buy "red ring" flange repair?
    By Amoreena in forum Toilet Forum discussions
    Replies: 2
    Last Post: 01-28-2006, 07:42 PM

Tags for this Thread

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
  •