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Mike R.
Mike R., Plumber
Category: Plumbing
Satisfied Customers: 2863
Experience:  20 years of plumbing experience, including high end homes and service work.
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2 sided Kitchen sink is clogged. I've taken both traps out

Customer Question

2 sided Kitchen sink is clogged. I've taken both traps out and nothing in them. Augered both sides up to 14' and still clogged, any suggestions?
Submitted: 1 year ago.
Category: Plumbing
Expert:  Mike R. replied 1 year ago.

Hi may name is ***** ***** I have been in the plumbing field for 20 years. I will be glad to help you today. Is this an older home? Do you have a basement, slab or crawlspace? Are you on city sewer or septic?

Customer: replied 1 year ago.
93, basement, sewer
Expert:  Mike R. replied 1 year ago.

IF you remove the studor vent does it still back up? click here

Customer: replied 1 year ago.
There is not a studor vent
Customer: replied 1 year ago.
That I see
Expert:  Mike R. replied 1 year ago.

Does the drain pipe go into the floor or the wall? Is there a window over the kitchen sink?

Customer: replied 1 year ago.
Into the wall. Window that leads to addition, Not an outside wall
Expert:  Mike R. replied 1 year ago.

Has it always drained slow or is it a new issue? Is there one pipe or two going into the wall?

Customer: replied 1 year ago.
Never been an issue. 2 pipes/ 2 traps. Dishwasher is dry.
Expert:  Mike R. replied 1 year ago.

If you hook the lower drain pipe to a sink but leave the higher one unhooked, does that sink drain well like that? Place something to catch water if it does not.

Customer: replied 1 year ago.
When one unhooked, drains into other, and vice versa
Expert:  Mike R. replied 1 year ago.

How would it drain into the other sink if it were unhooked?

Customer: replied 1 year ago.
Sorry. Yes drains well
Expert:  Mike R. replied 1 year ago.

So, to be clear, when you leave the higher pipe in the wall unhooked and hook the lower pipe to a sink it does not back up at all like it was when you have them both hooked up?

Customer: replied 1 year ago.
I just got it working. Thanks for the help.
Expert:  Mike R. replied 1 year ago.

The vent may be clogged and most would say that the vent from the roof, but really it is more likely that the vent is horizontal in the attic and a strap came loose. That will cause a belly in the pipe. Rain water will get into it and fill that belly with water and stop up the vent. Some of that water may have come out and got the vent working or it very well may be clogged with debris where it exits the roof. Check for a sagging vent pipe in your attic and strap it up. It is very likely to be the cause of the issue.

Expert:  Mike R. replied 1 year ago.

Leaving the higher sink open was a temporary vent and that is why that worked then. Once both sinks are hooked up again and the traps are filled with water again then the issue will return.