Amateur at work - sink fitting

Adam Stephens · 6 Jul 2021

Hi all,

First time trying to figure out how to fit a sink in the kitchen.
I’ve got stuck at the flexi hose going to the monobloc tap. As you will see from the picture, I’ve connected the hose directly to the copper pipe but it’s leaking a bit. Most videos I’ve seen connect to a straight pipe and attach with an olive but I can’t as the copper pipe has the threaded bit on the end.
I’ve also realised the hose is too long and bending so I’ve bought a shorter one.
I also realise one of them isn’t tightened fully but the one on the left is leaking having being tighten as much as I can! Help!

oldbuffer · 6 Jul 2021

1. When you say "the copper pipe has the threaded bit on the end" do you mean that it has a brass nut with a female thread on the end?
2. If so, then the copper pipe has either:
2a. A compression fitting with olive on the end.
2b. A tap connector with a flat flange on the end.
3. If 2a, then:
3a. Get a male compression iron (they are made of brass) like Screwfix 69358.
3b. Use the compression end to attach to the pipe. The existing nut should fit, and you may get away with re-using the olive. Wrap some PTFE tape around the olive before connecting if you are reusing it.
3c. Use the screw threaded end to attach the flexi. You will have to remove and discard the chrome male threaded adaptor.
4. If 2b, then:
4a. You might get away with adding a 1/2" fibre washer to each tap connector and screwing the chrome adaptors in. Bit of a bodge.
4b. Otherwise you will need to cut off the tap connectors and go back to bare pipe. You could use the male irons mentioned above, using the compression nuts and olives that come with them.
4c. If you have to cut back the copper pipework, it might be easier to go back to the isolation valves and fit new pipework from the valves to where the flexis need to terminate.
5. You are quite right, the kinked flexi should be replaced.

terryplumb · 6 Jul 2021

There should be a rubber seal in place between the flexi hose nut and the silver ,threaded fitting. Is there one ?
The silver coloured fitting that is on the copper pipe may not be flat faced ,and unsuitable.
Can you remove the flexi hose from it and show a picture ,in close up ,of that silver fittings threaded end ?

Adam Stephens · 6 Jul 2021

Really helpful replies! Right I’ll switch the water off and disconnect the hoses so I can take a photo!

CBW · 6 Jul 2021

Looks like it’s leaking from that bent tap connector.

RayCaister · 7 Jul 2021

Fit the flexi pipes directly onto the (flat faced) isolators. (bottom right of picture).

oldbuffer · 7 Jul 2021

1. Given that the visible isolator has copper tubing on the output side, and a compression fitting for it, it seems unlikely to me that it is flat faced.
2. Also doesn't look as if the current flexis would reach it.

JP_ · 7 Jul 2021

It always amazes me that we can keep fizzy coke in a bottle with a plastic screw lid, and champagne in a bottle with a bit of cork held with a wire, but plumbing is always prone to leak unless it is done perfectly each time.

Why can't plumbing be as easy as a screwing a bottle top on?

polesapart · 7 Jul 2021

More importantly, how do they get the champagne cork in?

Any here ever managed to reseal a half-finished bottle with the original cork without trimming it?

John the plumber · 7 Jul 2021

polesapart said:
More importantly, how do they get the champagne cork in?

Any here ever managed to reseal a half-finished bottle with the original cork without trimming it?

The corks get compressed before they go in the bottle and then they expand.

polesapart · 7 Jul 2021

That's cheating!

johnny2007 · 7 Jul 2021

Djangobanjo said:
It always amazes me that we can keep fizzy coke in a bottle with a plastic screw lid, and champagne in a bottle with a bit of cork held with a wire, but plumbing is always prone to leak unless it is done perfectly each time.

Why can't plumbing be as easy as a screwing a bottle top on?

It's easy if you use hep2o or similar.
I bet someone thinking along your same line came up with the idea.

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Amateur at work - sink fitting

Adam Stephens

Attachments

oldbuffer

terryplumb

Adam Stephens

CBW

RayCaister

oldbuffer

JP_

polesapart

John the plumber

polesapart

johnny2007

DIYnot Local

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