(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 7 of 7

Thread: Island Loop Vent - Correct Installation?

Hybrid View

  1. #1
    DIY Junior Member dekay's Avatar
    Join Date
    Nov 2012
    Location
    Oakland, CA
    Posts
    3

    Default Island Loop Vent - Correct Installation?

    Hi,

    Name:  Island Loop Vent.jpg
Views: 3575
Size:  29.0 KBAs part of a kitchen remodel, we are moving our island sink. The loop vent needs to be modified, but it looks like the current installation is not done correctly, and we may have an inspection issue if we keep it. The pipe to the exterior vent is connected to the drain side of the loop instead of the vent side, and the clean out is also on the drain side. I have created a simple diagram showing what I mean.

    What do you think - Will a loop vent work correctly in this configuration? Would it pass a typical inspection?

    Thanks!

  2. #2
    In the Trades Tom Sawyer's Avatar
    Join Date
    Nov 2010
    Location
    Maine
    Posts
    2,942

    Default

    Needs a clean out on the horizontal vent run and another at the base of the stack.
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

  3. #3
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,202
    Blog Entries
    1

    Default

    Something like this
    A cleanout can be in the sink cabinet, that's still considered end of line.

    Waste line 2"
    Vents and trap arm, 1-1/2"

  4. #4
    DIY Junior Member dekay's Avatar
    Join Date
    Nov 2012
    Location
    Oakland, CA
    Posts
    3

    Default

    Terry, TomSawyer:

    Thanks for the advice. Specifically, looking at the diagram Terry posted, if the vent line is connected just below the in-cabinet clean-out, under the floor, rather than on the other side of the loop, will the the sink drain properly?

    Dekay

  5. #5
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,202
    Blog Entries
    1

    Default

    The "foot vent" goes on the "vent" side.
    Your drawing is backwards.

  6. #6
    DIY Junior Member dekay's Avatar
    Join Date
    Nov 2012
    Location
    Oakland, CA
    Posts
    3

    Default

    My drawing, unfortunately, is how the current sink is vented, with the foot vent connected to the "drain" side rather than the "vent" side. I haven't had any issues with slow drainage, but it sounds like I may need to replumb the venting on the loop per the picture you posted.

    The way the sink is currently vented, it's almost as if the loop wasn't there.
    Last edited by dekay; 11-11-2012 at 07:06 PM.

Similar Threads

  1. correct plumbing for radiant connection to heat loop
    By wahwahwah in forum HVAC Heating & Cooling
    Replies: 5
    Last Post: 01-14-2012, 09:09 AM
  2. Island Vent Loop Question
    By Pauly79 in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 4
    Last Post: 08-30-2010, 06:13 PM
  3. island vent
    By larrygman in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 14
    Last Post: 11-29-2008, 06:50 AM
  4. island vent
    By data in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 6
    Last Post: 11-30-2007, 05:42 PM
  5. Island style vent for bathroom sink vent?
    By rvportland in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 10
    Last Post: 11-16-2006, 08:34 PM

Tags for this Thread

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
  •