leaking sink at drain

[donalmacc]

Hi there.

I've had a choked pipe and as part of getting it cleared, the drainage guys used our kitchen drain to access with a drain unblocker. They reassembled the drain after, but now the drain is dripping from where the sink attached to the tea, at the first washer. I've tried cleaning/drying/PTE taping a few times but with no luck.

When I tighten the female connector to hand tight, it slips back maybe two turns.

Is there anything else I can do or try myself?

 

[rpm]

Is that a notch in the rubber seal? Does it have to locate in something above? Or is the nut split?

 

[soother]

Hi there.

I've had a choked pipe and as part of getting it cleared, the drainage guys used our kitchen drain to access with a drain unblocker. They reassembled the drain after, but now the drain is dripping from where the sink attached to the tea, at the first washer. I've tried cleaning/drying/PTE taping a few times but with no luck.

View attachment 44526View attachment 44527View attachment 44528

When I tighten the female connector to hand tight, it slips back maybe two turns.

Is there anything else I can do or try myself?

Take off the U bend piece to allow movement and check that the down pipe is properly lined up and pushed fully home before tightening. If it is jumping threads,'slipping back,' it sounds like it may not be, and holding on the last few threads only. The male thread looks fine btw.

 

[donalmacc]

Thanks for the replies.

Is that a notch in the rubber seal? Does it have to locate in something above? Or is the nut split?

No notch in the seal, think it's just wet in that photo. There's nothing that I can see on u bend fitting that looks like there's anything to fit into either.

Nut doesn't look split from the top or the sides as far as I can see!

Take off the U bend piece to allow movement and check that the down pipe is properly lined up and pushed fully home before tightening. If it is jumping threads,'slipping back,' it sounds like it may not be, and holding on the last few threads only. The male thread looks fine btw.

Took the u bend piece off and lined it up. I pushed the straight part firmly into the drain, and tightened, to the same effect.

One thing I did notice is that when I reattched the u bend part, it was pushing the straight pipe forwards

Attached a video of me tightening it by hand. Before I even get any resistance it "pops" and jumps back. This is without the u bend attached to the bottom of it.

 

[rpm]

It`s like the nut is hitting the top before being tight, as if there is something missing but I can`t think what it is- sorry.

 

[donalmacc]

It`s like the nut is hitting the top before being tight, as if there is something missing but I can`t think what it is- sorry.

No problem at all, I appreciate the help! I'll give the guy who fitted it a call this week and see if he has any idea!

 

[soother]

The seal looks very close to the end of the pipe. Slide it down, or better, take it right off then take the nut off of the pipe too and see how it feels when you screw the nut alone onto the male thread.