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Sink doesn't drain - no clog

M

manishatjnu

Junior Member
HI, My kitchen sink is draining very slowly for last 10 days. I have tried different anti-clogger, tried plunger. I even dismantled the P-trap and joining pipes to clean them up. There was some oily blockage which I cleaned. Even after that the water in not draining.

I am attaching photograph of pipe down the sink as well here. Sink and dishwasher both are joining before P-trap. I see one more curve after P-trap which connects to grey pipe. All the pipes which you see in these photographs are clean.

I was also going through one thread of vent in this site. Could it be vent problem, ie. while joining the pipe back, did I miss anything which is causing the water to go very slow? Another point which I noted is - the pipe length which is there in pic, I assume they can contain 7-8 glasses of water. But when I pour some water after fitting the pipe back, it could take only 2 glasses of water. Which makes me feel that water is going only till P-trap and somehow not moving afterward. Please suggest where and what I can check to solve this.
 

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what country are you in? those fittings are interesting. I would try to snake at least all the way to the bottom elbow. you can snake from the vent at the roof as well, depending on how your plumbing is set up.
 
The surprise isn't that it's plugged, but that it ever worked at all.
Clearly the drain is plugged somewhere along the way. It's not a vent issue because it appears that there isn't one.
Also, the drain from you dishwasher looks like it's about to fall off, and while you're fixing that you should put an air gap on it.
 
Greenman said:
It's not a vent issue because it appears that there isn't one.
Also, the drain from you dishwasher looks like it's about to fall off, and while you're fixing that you should put an air gap on it.
Click to expand...
yeah, no vent.
An undersink vent would probably go a long way toward solving the issue.

The dishwasher drain hose appears to be attached to an angled hose adapter, hence the oval shape at the end where it is pushed on too far.
But what is the drain line (?) with the red cap behind the dishwasher feed line?
 
Micrornd said:
yeah, no vent.
An undersink vent would probably go a long way toward solving the issue.

The dishwasher drain hose appears to be attached to an angled hose adapter, hence the oval shape at the end where it is pushed on too far.
But what is the drain line (?) with the red cap behind the dishwasher feed line?
Click to expand...
Yes, dishwasher drain is with angled hose and tightly fit.

Drain line is the grey pipe which you see behind p-trap. That takes three 90degree and then goes parallel to floor. Only first 3 sides on grey pipe is visible.
 
manishatjnu said:
Drain line is the grey pipe which you see behind p-trap. That takes three 90degree and then goes parallel to floor. Only first 3 sides on grey pipe is visible.
Click to expand...
Yes, I see that.
And it definitely needs a vent line to work properly.
I was referring to (the red cap) what I thought was a drain line, but on further examination appears to be a meter of some sort (?) with remote read option (?)
 
Last edited:
Micrornd said:
Yes, I see that.
And it definitely needs a vent line to work properly.
I was referring to (the red cap) what I thought was a drain line, but on further examination appears to be a meter of some sort (?) with remote read option (?)
Click to expand...
yeah. meter for water
 
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