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I am trying to fix tap that has a leaky hose that leaks where 3/8 nut is. It leaks only when I move the nut. Presumably because I over-tightened it last time.

I went to Lowe's and Home Depot and they did not have a replacement hose because of the unconventional 1/8 brass pipe fitting end that goes into tap.

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The questions I have:

  1. Is it possible to repair such hoses by replacing just the rubber seal on the 3/8 compression fitting end? If yes, what part do I need to fix it?
  2. Any other tricks to try so that I could avoid to replace the tap?
  3. Home depot plumber told me it is 1/8 brass pipe fitting, but is it really true? On amazon I found visually similar hose where other end was called M10 connector. So which one of these two is it?

Update#1: Here is close up. It leaks just behind the nut where arrow points. Leak gets worse if I wiggle the hose.

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  • if it leaks from that crack that's not the where the seal is, the seal is between the fixed part of the hose and whatever it connects to, the nut is just to maintain pressure. can you show a photo looking into the leaky end on an angle? – Jasen Nov 24 '18 at 10:32
  • @Jasen I uploaded picture. Let me know if it is good. – Hans Solo Nov 25 '18 at 6:29
  • I want to see the opposite view, what your granite bench would see. – Jasen Nov 25 '18 at 6:31
  • @Jasen. Done. There is damaged black rubber seal. There were small parts that were separated. – Hans Solo Nov 25 '18 at 6:51
  • yeah, you need to replace that seal, and make sure the surface it presses against is clean level and smooth. it should be possible to extract the seal with a pointed tool, (pin or nail etc) and find a replacement at the hardware store. – Jasen Nov 25 '18 at 6:56
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I was able to reuse hose by just replacing the o-ring.

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