How to remove bathroom sink drain collar?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Capt. David, Jul 29, 2008.

  1. Capt. David

    Capt. David New Member

    Messages:
    2
    Location:
    New York
    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

    Messages:
    7,450
    Location:
    Connecticut
    Hold the assembly below and unscrew the collar (flange)
    Last edited: Jul 29, 2008
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,054
    Location:
    Cave Creek, Arizona
    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.
  4. Capt. David

    Capt. David New Member

    Messages:
    2
    Location:
    New York
    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
  5. kenfused

    kenfused New Member

    Messages:
    11
    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!
  6. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,054
    Location:
    Cave Creek, Arizona
    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.
  7. kenfused

    kenfused New Member

    Messages:
    11
    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?
  8. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,054
    Location:
    Cave Creek, Arizona
    You hold the large nut, and then "unscrew" the drain body out of it. The diffenence in thread pitch between the large nut and the collar, creates "pressure" which clamps the collar so the drain loosens from it.
  9. kenfused

    kenfused New Member

    Messages:
    11
    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?
  10. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,054
    Location:
    Cave Creek, Arizona
    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.
  11. kenfused

    kenfused New Member

    Messages:
    11
    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
  12. Terry

    Terry Administrator Staff Member

    Messages:
    15,302
    Location:
    Bothell, Washington
    Normally it takes two pairs of pliers. One to hold the flange and one for the drain body.
  13. kenfused

    kenfused New Member

    Messages:
    11
    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
  14. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    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??
  15. kenfused

    kenfused New Member

    Messages:
    11
    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?
  16. Terry

    Terry Administrator Staff Member

    Messages:
    15,302
    Location:
    Bothell, Washington
    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]
  17. kenfused

    kenfused New Member

    Messages:
    11
    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
  18. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    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.
  19. kenfused

    kenfused New Member

    Messages:
    11
    Location:
    CA
    Thanks!

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

    gmom New Member

    Messages:
    2
    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 What is this? Can I remove it from my basement bathroom floor? Feb 11, 2014
Plumbing Forum, Professional & DIY Advice Kohler Memoirs bathroom sink valve replacement - how to remove the bonnet? Jun 19, 2013
Plumbing Forum, Professional & DIY Advice Grohe Bathroom Faucet - How to remove cartridge?? Dec 10, 2012
Plumbing Forum, Professional & DIY Advice Should I remove a galvanized nipple that goes into the p trap in a bathroom sink. Oct 23, 2011
Plumbing Forum, Professional & DIY Advice Can't Remove Bonnet To Repair Bathtub Faucet Saturday at 6:37 AM

Share This Page