Help with an island vent


Old 06-12-19, 02:57 PM
Thread Starter
Join Date: Jan 2009
Location: SE Texas
Posts: 39
Received 2 Votes on 1 Post
Help with an island vent

I have another disaster on my hands. I paid this company to remodel my kitchen and he removed a wall making the kitchen sink now in an island. It used to have a vent pipe running up through that wall they removed but when they removed the wall , they removed the vent pipe also. They put a "sure-vent" in the kitchen sink pipe to replace it. They also put a vent trap (?) up near the faucet.

That would probably have worked but after they finished and left, we realized the Washing Machine also uses that line and drains past the sink. There is a vent that runs through the roof at where the washing machine starts.

So as a visualization, you have the washing machine at the start of this drain line, it goes 20 feet , running under the kitchen sink (where it connects) and then another 30 feet to connect to the main sewer line.

When the washing machine drains and sends the water rushing by the kitchen sink it makes a really LOUD gurgling sound at the kitchen sink.

At first it was just annoying, but after three weeks now the line has plugged. We had it cleaned out, the gurgling persists and now we are worried that it's going to plug again.

The plumber came back out and said we needed a loop at the kitchen island, but after cutting out the wall realized that he cannot get to the main line without busting out the flooring to hook the loop back into. That's really not an option.

So now I am kind of stuck. Does anyone have any ideas if the gurgling would even be vent related seeing that there is a vent at the washing machine?

Name:  v1.JPG
Views: 51
Size:  38.2 KB

Name:  v2.JPG
Views: 56
Size:  46.8 KB

Last edited by PJmax; 06-12-19 at 05:48 PM. Reason: reoriented/resized pictures
Sponsored Links
Old 06-13-19, 02:07 PM
Forum Topic Moderator
Join Date: Sep 2005
Location: USA
Posts: 5,049
Received 78 Votes on 73 Posts
I think you might have a clog between your kitchen sink and main drain.

I struggled with an AAV that wasn't working well. I replaced the vent which didn't help. Turns out there was a partial clog. After snaking, it all worked perfectly.

I bet you have that same issue. The design of your drains seem to be correct.
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: