Banded Clamp

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by gsici, Jan 24, 2009.

  1. gsici

    gsici New Member

    Messages:
    33
    I am tapping into my main indoor drain for a basement toilet. And I could use to banded clamps, however my preference would be to use a regular coupler on one side and a rubber on the other but getting the gap to zero is vituallly impossible. How big a gap is allowed when using a 4" banded clamp?
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,443
    Location:
    Bothell, Washington
    You normally add 1/4" for the band.

    If the fitting is 9-3/4", you cut out 10"
  3. gsici

    gsici New Member

    Messages:
    33
    Terry Sorry I am a newbie.
    Not sure I follow. I have a 4x4x3 Wye fitting going into this gap and I would like to glue one side in and align the other side as close as possible to the pipe using a clamp, however during my dry fit I cannot get one side in to glue without at least a 1/2 '' gap. Is this too big?
  4. Mad Plumber

    Mad Plumber Mad Skills

    Messages:
    221
    I don't think you can glue one side and make it work.
    When I"m cutting in a wye, or any fitting for that matter, into a "fixed in place" line, I use two couplings.
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,298
    Location:
    Cave Creek, Arizona
    connection

    Unless one side or the other is able to be flexed out of the way, there is no way you will install your Y by gluing one side and then a conventional band on the other.
  6. gsici

    gsici New Member

    Messages:
    33
    HJ
    Thx I will do two clamps, However here is a twist. I am reducing from a 4"PVC to a 3"ABS at the WYE and I am less comfortable (after the numerous threads on this forum) about using transition glue. Would a third clamp be okay?
Similar Threads: Banded Clamp
Forum Title Date
Plumbing Forum, Professional & DIY Advice Buried Fernco/Mission coupling - use metal banded or all rubber? Aug 15, 2014
Plumbing Forum, Professional & DIY Advice banded coupling from 1-1/4 copper Nov 23, 2008
Plumbing Forum, Professional & DIY Advice Simple one - Banded Couplers inside Wall ? Feb 5, 2008
Plumbing Forum, Professional & DIY Advice Installing a neoprene sleeve banded coupling - the easy way! Sep 19, 2007
Plumbing Forum, Professional & DIY Advice Still struggling with XH cast iron banded coupler-help?! May 3, 2007

Share This Page