How to connect to 3/8 hose?

[r_c]

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.

20210327_120251 (1)

• r_c
• 27 Mar 2021

20210327_120031 (1)

• r_c
• 27 Mar 2021

20210327_120022 (1)

• r_c
• 27 Mar 2021

20210327_120014 (1)

• r_c
• 27 Mar 2021

 

[muggles]

https://www.screwfix.com/p/tesla-br...exible-tap-connectors-15mm-x-3-8-2-pack/6089R

Fit these into the top of your isolation valves and away you go

 

[r_c]

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.

20210327_134552 (1)

• r_c
• 27 Mar 2021

 

[denso13]

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

 

[Madrab]

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.

 

[ETAF]

you could just buy another isolating valve and use the olive / nuts from that
https://www.toolstation.com/isolating-valve-cp/p36879
OR screwfix seem to only sale in pairs
https://www.screwfix.com/p/isolating-valve-15mm-2-pack/65251
Maybe easier then trying to find a plumbers merchant , open over the weekend

 

[r_c]

Thank you @denso13 , @Madrab and @ETAF !

 

[r_c]

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

20210327_150156 (1)

• r_c
• 27 Mar 2021

I now want to go and learn how olives work!

 

[ETAF]

 

[r_c]

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?

 

[denso13]

Have a missed a step?

No, not really required.

 

[Madrab]

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.

 

[Bullet-Proof_Biscuit]

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