Bathroom Sink Flange Replacement

Admin Desember 04, 2021

Bathroom Sink Flange Replacement

  1. Terry,
    I am replacing my bathroom sink fixture, and drain assembly. I've managed to get the faucet out, but am stuck removing the drain collar assembly. It's all loose, but the collar (above), and pipe (below) seem to be one piece, and will not fit through hole in either direction. Please help with suggestions. Thank you.
  2. Redwood

    Redwood Master Plumber

    Joined:
    Dec 15, 2007
    Occupation:
    Service Plumber
    Location:
    Connecticut
    Hold the assembly below and unscrew the collar (flange)
    Last edited: Jul 29, 2008
  4. hj

    hj Master Plumber

    flange

    It would have been a lot easier to do before you loosened it from the sink. Now you have to hold the collar somehow while you unscrew it from the drain fitting.

  5. Thank you

    Yes, it was a matter of removing the collar, which was so mucked-up, I didn't know it was threaded. Mission accomplished.
    Anon,
    Capt. David

  6. kenfused

    kenfused New Member

    Joined:
    Oct 7, 2010
    Location:
    CA
    Hello,
    is there an easy way to unscrew the sink drain collar without needing to loosen anything from below?

    If not, If I loosen the main flange (terminology?) under the sink drain from below, how do I get a grip on the sink drain collar on top to unscrew it?

    Thanks!

  7. hj

    hj Master Plumber

    usually, before you loosen the bottom nut, if you hold it as if you were going to TIGHTEN it, and "UNSCREW" the drain body, the collar will come loose.
  8. kenfused

    kenfused New Member

    Joined:
    Oct 7, 2010
    Location:
    CA
    Thanks.
    I'm a total newbie.
    What do I need to hold? hold the drain collar and unscrew from below on the drain body?
  9. hj

    hj Master Plumber

    You hold the large nut, and then "unscrew" the drain body out of it. The difference in thread pitch between the large nut and the collar, creates "pressure" which clamps the collar so the drain loosens from it.
    Last edited by a moderator: Oct 30, 2016
  10. kenfused

    kenfused New Member

    Joined:
    Oct 7, 2010
    Location:
    CA
    Thanks for all the help.
    I assume I also have to release the part that connects the pop up drain (moves it up and down) before trying to twist anything!

    Then I (hopefully) remove the old one, put the new one down with a layer of plumbers putty then retighten.

    If it doesn't come loose, any other tricks to loosen the collar?

  11. hj

    hj Master Plumber

    I have NEVER had one NOT come loose if it is done exactly the way I describe it. Once collar comes loose, you can release your grip on the big nut and unscrew it the rest of the way from the collar. The alternative is a hacksaw cutting through the drain and rubber washer right below the sink.
    Last edited by a moderator: Oct 30, 2016
  12. kenfused

    kenfused New Member

    Joined:
    Oct 7, 2010
    Location:
    CA
    [​IMG]

    Looking at this diAgram do I have to disconnect the tailpipe too?
    Sorry for All the questions. I am doing this at a friends house so I am not looking at the pipe at the moment.
    Also do I use pipe compound to reattach the pipes?

    Last edited by a moderator: Jul 17, 2011
  13. Terry

    Terry Administrator Staff Member

    Normally it takes two pairs of pliers. One to hold the flange and one for the drain body.
  14. kenfused

    kenfused New Member

    Joined:
    Oct 7, 2010
    Location:
    CA
    How do you use pliers to hold the flange when it is in the sink?
    Doesn't seem like there is much to hold on to
  15. First you have to loosen the big nut underneath...then the flange will rise an inch or so above where it contacts the sink. You have to be careful to not scratch the sinke, and if it is stubborn, that is why I and others often resort to just cutting below the sink bottom. Chances are you are not planning to reuse any of this anyway??
  16. kenfused

    kenfused New Member

    Joined:
    Oct 7, 2010
    Location:
    CA
    actually I was hoping to only replace the collar (as it has become scratched and rusty).
    I should be able to reuse the pop up drain part and replace the gasket/nut/washer right? (these parts are under the sink right?) only the collar (and putty) is above?
  17. Terry

    Terry Administrator Staff Member

    Do you have a replacement flange on hand?

    Normally by the time you need to replace the flange, the parts have changed dramatically and no long match up.
    Anytime we work on them, we pick up a new drain assembly and "trash can" the old one.
    If the sink is more then twenty years old, I like to trash that too.
    Porcelain on steel will rust out at about that time.

    [​IMG]

  18. kenfused

    kenfused New Member

    Joined:
    Oct 7, 2010
    Location:
    CA
    Kohler sent me a new flange. I'm replacing mainly b/c the flange has gotten damaged, (chemicals?) so now it rusts even though it is satin nickel finish. The drain and sink are about 8 years old, so I didn't think I'd need to replace everything... (hoping)

    BTW, this is a dumb question.
    I'm looking at replacement parts, what does an drain "with overflow" mean?

    Last edited: Jul 17, 2011
  19. Most, not all, bathroom sinks have an overflow hole near the top of the bowl...to prevent overflow if you accidentally overfill it. That overflow hole channels water down to the area of the drain, and the holes you see in the drain body, just below the flange, allow that water to flow into the pipe.
  20. kenfused

    kenfused New Member

    Joined:
    Oct 7, 2010
    Location:
    CA
    Thanks!

    How long do pop up drains last?
    I should be able to get away with just replacing the collar right?

  21. gmom

    gmom New Member

    Joined:
    Jul 31, 2011
    Location:
    PA
    I am having this same problem. The drain is at least 17 years old and stuck solid. Can I saw thru a metal pipe with a hacksaw? Learning to try to fix things after becoming newly single so sorry to sound dumb! Thanks!
Similar Threads: remove bathroom
Forum Title Date
Plumbing Forum, Professional & DIY Advice Weird bathroom sink faucet mounting-how to remove? Jul 22, 2021
Plumbing Forum, Professional & DIY Advice Remove old bathroom faucet held in place by lever retainer clip Aug 6, 2020
Plumbing Forum, Professional & DIY Advice How to remove bathroom faucet Jul 26, 2020
Plumbing Forum, Professional & DIY Advice What is the best way to remove these vinyl + tiles from bathroom floor Jan 29, 2020
Plumbing Forum, Professional & DIY Advice Not able to remove bathroom faucet and taps Dec 7, 2018

Share This Page

Bathroom Sink Flange Replacement

Source: https://terrylove.com/forums/index.php?threads/how-to-remove-bathroom-sink-drain-collar.22347/

Posting Komentar

0 Komentar

banner