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How to connect to 3/8 hose?

Discussion in 'Plumbing and Central Heating' started by r_c, 27 Mar 2021.

  1. r_c

    r_c

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    This is my first attempt at changing a tap :) But I am stuck as to how to connect the hose to my existing pipework. Can you please tell me what part I need

    I am trying to fit a new Grohe kitchen tap. The hose appears to be 3/8". The isolation valve is on a 15mm pipe. I hope the photos help.

    How do I connect the 3/8 hose to the existing 15mm isolation valve?

    It looks like I will still need another metal hose as the Grohe hose is not far enough?

    And is this only an issue because I bought the tap from a German ebay seller?

    Thank you.

     
    Last edited: 27 Mar 2021
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  3. muggles

    muggles

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  4. r_c

    r_c

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    Thank you @muggles . screwfix isn't far so I'll give that a go. But it seems to me as if only one end of that connector is threaded and the hose and isolating valve in my situation are both threaded.

     
  5. denso13

    denso13

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    You'll need a nut and olive on top of the existing isolating valves.
     
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  6. Madrab

    Madrab

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    You are missing the nuts and olives from the top of your ISO valves. I presume the previous installer just nipped the flexi's straight onto the top of the ISO.

    You need 2x15mm nuts and 2 olives.
     
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  7. ETAF

    ETAF

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  8. r_c

    r_c

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    Last edited: 31 Mar 2021
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  10. r_c

    r_c

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    The finished product. New tap seems to be working well. Thank you all for your help with this! :)


    I now want to go and learn how olives work!
     
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  11. ETAF

    ETAF

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  12. r_c

    r_c

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    At the end of installing this tap I had a small white sachet from Grohe with German writing on it. Google Translate tells me the German says "synthetic grease".

    Have a missed a step?
     
  13. denso13

    denso13

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    No, not really required.
     
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  14. Madrab

    Madrab

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    Not really, you use the grease to lubricate the o-rings that are on the tap end of the flexi tails, just ensures they slot into the hole properly. As long as it's not leaking then I wouldn't worry.
     
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  15. Bullet-Proof_Biscuit

    Bullet-Proof_Biscuit

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    I have a random IV in my plumbing box with an unusual fitting on one side, maybe it is for these new fangled microbore tap cons
     
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