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How to fix kitchen sink pipe leaking water?

Hi Guy's,

I have occasional leak from the kitchen sink drainer pipe. I did unscrew the remainder of the pipes and cleaned it which has stopped the water dripping for a while but it has started again. Attached are the photos if some one can help. I am unable to unscrew the connected pipe attached to the sink directly for some reason as shown with my fingers and I feel the drainer seal is leaking.

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EricL

Hello @jim_parekh

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about kitchens plug and waste.

I suspect that the top seal on your plug and waste has deteriorated and is allowing water to bridge inside the plug and waste and causing a leak. In the image below you will see the basket plug and waste and immediately below this is the top section of the plug and waste. By removing the holding screw in the middle, you will be able to lift this top section off.

I recommend putting a fine bead of silicone such as Selleys 90ml Clear Wet Area Silicone Sealant on the bottom lip of the top section. If the rubber washer is still on the kitchen sink, I suggest removing it as the silicone will take its place. Place the top section back in place put the holding screw back in and wipe off the excess silicone with a paper towel. Allow the silicone to cure for a few hours before using the sink again.

If you need further assistance, please let us know.

Eric

jim_parekh

Thanks Eric for a quick reply, I was lost to find the holding screw you were referring to. Can you please add the image on your next reply so I can figure it out. I have added couple of photos from beneath of the sink for reference. If you can circle and show on it plz🙏

MitchellMc

Hi @jim_parekh,

Eric is likely referring to a screw inside the sink on the top of the waste outlet.

Just a question, on the inside of the sink where the waste is, is there a black washer under the waste? The black washer I've marked in the image below with the red arrow typically goes on the inside of the sink, which seals the water there. If there is only a black washer in this position on the underside of the sink, then water can escape the bowl and track through the threads. If there is no black washer on the inside of the sink then I would remove this one and place it there.

Please let me know if you have any questions.

Mitchell

jim_parekh

Hi Mate,

Somehow don't have any screws here

EricL

Hello @jim_parekh

If you look closely in the middle of the waste there is a round metal circle with a hole where the plug and paste post sinks in and slots on its sides. The slots are far enough away that if you were to place the head of a spoon in the slots it would allow you to turn it clockwise and anti-clockwise. Please give it a try.

If you need further assistance, please let us know.

Eric

Noyade

"Somehow don't have any screws here"

Look closer - there should be two slots...

Try @EricL's very clever suggestion - a spoon.

Or a small cold chisel, 12mm slotted screwdriver, hub cap remover - etc.

Good luck @jim_parekh

jim_parekh

Thank you, everyone. This is very useful. I will give this method a try now.

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