Kitchen waste overflow connection leaking

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13 Apr 2021
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Hi,

I have bought a new kitchen overflow and want to connect it to the waste. Plastic flexihose is inserted into the compression with rubber washer and all tightened up. But no matter what I do, it leaks at that joint when water goes down the plughole from washing up etc.

The flexihose is new, so no kinks or damage. But I think the corrugated nature of it doesn't allow a watertight seal with the washer.

Any suggestions? Attaching an image, this isn't the one I have but exactly the same principle. Leaking from the compression nut in the red circle.

Thanks in advance...
 

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Iirc the conical washer fits one way, make sure of this 1st.
 
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