Kitchen Sink Drain Clogs Frequently

Hi,

Ever since we bought this house, couple of years back, our kitchen sink drain clogs three or four times a week even though we have a fine strainer in place. To me. it seemed like an air lock and I inserted a garden hose throughout the entire height ( roof to floor) and also ran water for 5 minutes – no issues there.
Clogs develops frequently and un clogs easily with the kitchen sink plunger. sometimes clears with gurgling noise -probably air trapped inside?
Now I am thinking maybe it has to something to do with alignment, height, diameter etc of plumbing (photo below).

https://goo.gl/zwgiiW

Please help me in fixing this annoying issue.

Thanks.

AbsoluteZero

 

Is the flex line the drain from the dishwasher? What is the horizontal line to the right of the tail pipe? Does it only clog when the dishwasher is used?

 

Hi,

Flex line is drain from dish washer.

Horizontal line is cold water line (it is behind tailpipe, also visible at bottom of P trap). I have removed filter from that line, that is why a shark bite joint.

No, clogs irrespective of dishwater running or not.

Appreciate your time.

Thanks.

 

When the drain is not clogged get a bucket of water and dump in the sink or fill the sink and remove the stopper. Does it drain at a good pace? Does it drain for a bit then slow to a stop?

 

I was thinking of the same test. Let us know.

 

Have you dropped the trap and looked inside? Your dishwasher hose should have a loop in it that takes it well above the entrance to the drain to prevent a clog from backing up into the dishwasher. Possible that the end of the trap piece that enters the trap adapter on the horizontal that enters the wall is too long and is restricting flow once in the wall causing a log jam.

 

Hi all,

Water drains out at a fast pace, I covered the drain opening with my palm, there was strong suction and also made suction noise when draining.

I have also noticed that after removing the clog, partial clog re-develops and slows down the flow even when when sink has not been been used.

czizzi,

Trap is clean and also horizontal pipe to the wall. In the basement, there is a drain plug that I tried to open with a wrench but no luck. Plug threads seemed a little shiny under flash light, maybe someone used a sealent!! What the best / safe way to unfreeze it ? (pls see pic) Dont want to end with a bigger mess.

I messed up the loop of dish water flex drain.


Thanks for your time.

Happy Independence Day.

 

To open the clean out plug in the pic, you would need a pipe wrench with a 2" diameter pipe about 3 feet long. The pipe gets used as an extension.

I think that there is another pipe connected to the 4" horizontal pipe that's causing the problem. What pipe is between the vertical pipe & the trap?

 

I'm wondering if there's a vent issue. If the drain line is properly vented you would not get a strong suction as the vent would break the suction. You may have run a hose down your house's main vent stack but the line to your kitchen sink could be clogged.