(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 4 of 4

Thread: Kitchen Sink... No Vent? Plus Moving Plumbing

  1. #1
    DIY Junior Member monkeystomach's Avatar
    Join Date
    Jul 2010
    Location
    VA
    Posts
    27

    Default Kitchen Sink... No Vent? Plus Moving Plumbing

    Hi Everyone,

    The below pictures are of my (old) kitchen sink setup. To me there appears to be no vent. The picture from below the house seems to show the same thing because the 3" pipe that continues to the left connects to the plumbing that leads to the sewer...









    From the inside of the kitchen picture I plan on moving the sink to the right and using it as a corner sink.

    I want to me sure I do everything right and it is correctly vented. What is the best way to do this?

    Should I just copy the ABS setup that I have and connect it to the main pipe under the house?


    Thanks,

    Ed

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,207
    Blog Entries
    1

    Default

    I haven't seen a sink plumbed that way before.

    If you have a vent somewhere between the kitchen sink and the other plumbing, I would think you would be okay.
    In a sense, using the oversized pipe is like having a loop vent without the loop.
    I don't know how an inspector would view it there.
    I personally wouldn't install one that way unless I had talked to a local inspector first.
    And if I did, I would want a vent included like the picture below has.

    An island vent looks more like this


    The santee on the vent below the floor should have been a combo.
    Last edited by Terry; 05-26-2011 at 10:15 AM.

  3. #3
    Jack of all trades DonL's Avatar
    Join Date
    Mar 2011
    Location
    Houston, TX
    Posts
    3,660

    Default

    Terry,

    My kitchen is hooked up just like the original posters.

    I am on my own septic system, and I have the kitchen sink going into a grease trap.

    Should I have a vent also ? I guess we have no codes here in the sticks.


    You Expert Plumbers have a lot to keep in your brain, and I am out of memory.


    Enjoy your Day, Take time to play.


    DonL
    Last edited by DonL; 05-26-2011 at 10:39 AM. Reason: Bad English
    Theory only works perfect in a vacuum.

    Cyber Security Protection for Windows C:\ > WWW.WinForce.Net

  4. #4
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,207
    Blog Entries
    1

    Default

    I think with the 3" line, and the fact that you must have already had an inspection, that it will be fine.
    The oversized 3" line allows for air over the flowline.
    In Japan, that's how they do a lot of the plumbing. Oversized trunk lines to provide venting.

    Last edited by Terry; 01-26-2012 at 05:28 PM.

Similar Threads

  1. Moving Sink Faucet plumbing
    By dumbunusedid in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 2
    Last Post: 11-03-2008, 03:17 PM
  2. New kitchen sink plumbing
    By Onecooljewel in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 11
    Last Post: 01-14-2008, 07:39 PM
  3. Moving a Kitchen Sink about 3 feet
    By russellclaude in forum Remodel Forum & Blog
    Replies: 5
    Last Post: 12-12-2006, 06:31 AM
  4. Plumbing for kitchen sink vent/drain
    By cmoglia in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 3
    Last Post: 06-01-2006, 08:30 PM
  5. Moving Kitchen Sink Drain
    By martin280 in forum Remodel Forum & Blog
    Replies: 1
    Last Post: 09-15-2005, 01:05 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •