2 inch vs 1.5 trap for kitchen sink

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by bbillcee, Mar 9, 2010.

  1. bbillcee

    bbillcee New Member

    Messages:
    101
    Location:
    NY
    i have a 2 inch pvc 90 stubbed out under the sink....i was planning to install a 2 inch trap then use a 2 in to 1,5 reducer to connect to the tail piece

    or would it be better to put an a 2 inch adapter at the 90 and use a 2 to 1.5 inch lock nut and step it down and use 1.5 for everything

    which would be the better job?
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,245
    Location:
    Cave Creek, Arizona
    drain

    Neither way is necessarily "better" and both are equally adequate. Because of the long term benefits, I would use the reducer on the 2" and 1 1/2" tubing for the rest of the drain installation.
  3. bbillcee

    bbillcee New Member

    Messages:
    101
    Location:
    NY
    thanks HJ i just though maybe the 2 inch would having things flowing better...the 2 gal i replaced was down to about 3/4 with all the build up:eek:
Similar Threads: inch trap
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & Sink trap - making 1 1/4 inch connection 1 1/2 inch Dec 5, 2013
Plumbing Forum, Professional & DIY Advice, Tips & 2 inch pipe to P Trap Mar 15, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Are the trap arms 2inch or 1 1/2 inch? Jul 23, 2010
Plumbing Forum, Professional & DIY Advice, Tips & 2 inch p trap in 2x6 bay Nov 16, 2009
Plumbing Forum, Professional & DIY Advice, Tips & 2 inch trap for bathtub to reduce clogging? Mar 29, 2009

Share This Page