adapting sink drain from 1/14 to 1 1/2 at trap

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by lemon00, Dec 3, 2012.

  1. lemon00

    lemon00 New Member

    Messages:
    2
    Location:
    Seattle
    I have a threaded sink drain that requires a 1 1/4" flanged tailpiece. the trap that is installed is a 1 1/2" slip joint (ready to accept a 1 1/2" pipe). It seems to me the easiest way to deal with this is to have an adapter at the p-trap, that will accept a 1 1/4" pipe I know there are 1 1/4" to 1 1/2" adapters, but all the ones I can find are a weld-type on the 1 1/2" side. Are there ones that are threaded on the ! 1/2" side, so I could just take the nut off the slip joint on the trap, and screw on the adapter? Or how else can I do this?
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,825
    Location:
    Cave Creek, Arizona
    You use a 1 1/2" x 1 1/4" slip joint washer inside the slip nut.
  3. lemon00

    lemon00 New Member

    Messages:
    2
    Location:
    Seattle
    ahh so simple thanks!
Similar Threads: adapting sink
Forum Title Date
Plumbing Forum, Professional & DIY Advice Adapting deck-mount tub faucet to wall-mount Nov 13, 2012
Plumbing Forum, Professional & DIY Advice moving or adapting pipes for a larger bathtub Jun 14, 2012
Plumbing Forum, Professional & DIY Advice Adapting a union to a PRV Mar 16, 2006
Plumbing Forum, Professional & DIY Advice Installing Utility Sink in older house Oct 16, 2014
Plumbing Forum, Professional & DIY Advice Kitchen Sink Drain Oct 13, 2014

Share This Page