Waste backflow and clogged sink

[kovacsa]

Hi All, Our basement kitchen sink seems to have a major backflow and/or clogging issue.

The sink will gurgle at times and bring up a very foul smelling waste.

It seems it might be more than a simple clogging issue as it happens without any liquid in the sink. The problem seems further down the line.

It is not happening constantly. In the beginning, it was smaller less foul smelling black waste.

It has been happening for at least 3 weeks and only in the basement kitchen sink.

We've tried using the drain cleaner (pictured) as advised, and also by trying toilet and sink plungers (pictured) the drain seems to be heavily clogged now.

 

[Reach4]

If you have a second bowl in that sink, I presume it backs up too. Most likely you have a clog where the drain line switches from vertical to horizontal. You need it cleaned out.

Do you see the pipe coming down from above, perhaps from the upstairs kitchen? If so, I can suggest how you can clean out the pipe.

 

[Sponsor]

 

[kovacsa]

If you have a second bowl in that sink, I presume it backs up too. Most likely you have a clog where the drain line switches from vertical to horizontal. You need it cleaned out.

Do you see the pipe coming down from above, perhaps from the upstairs kitchen? If so, I can suggest how you can clean out the pipe.

Hi, Yes, There are two bowls and both have the issue.

No, Unfortunately, we can't see the pipe coming down from upstairs.

 

[Reach4]

Hi, Yes, There are two bowls and both have the issue.

No, Unfortunately, we can't see the pipe coming down from upstairs.

If there is no cleanout, your drain cleaner could try rodding through the trap adapter. It would probably be better to add a cleanout.

If you go in and add a cleanout, you don't have to make the patch match the rest of the wall if that kitchen sink is on a closed cabinet.

 

[Sylvan]

Before snacking or even trying to water jet the line try to rent a General Ramjet

I was called to a church for a kitchen sink stoppage but it turned out to be a 4" stack stoppage and all the sewer waste was flowing back into the commercial sink

Rather then try to remove the trap and have sewerage spew all over the kitchen I decided to try using the ram jet as I had nothing to lose

I started with 5 PSI then 10 Psi then 20 PSI and finally 40 and the stoppage was cleared