Will this adaptor connect this pipe to this fitting?

plumb1_2

You need to remove that flex and use a nut and olive on the valve, then a 1/2” male iron to 15mm brass adapter 

bjorn_toby_wilde

Brimble said:

bjorn_toby_wilde said:

That’s good. Just one minor leak then.

No, it won’t fly off. It’ll just continue to drip.

Have you tried nipping it up just a little tighter?

The fitting should have had a rubber washer inside it. If it didn’t then you’re looking for a 3/4 tap connector washer. Try your nearest plumbers merchants as the DIY sheds will want to sell you a pack. That plus 4 winds of PTFE tape should stop it.

When you say "4 winds of PTFE tape", I assume you mean start at the end and wind 4 times with some overlap up the stem? You don't mean do the same whole thing 3 more times do you? (I don't really know about PTFE tape). But we'll get the washer too defintiely.

4 winds, one on top of the other. It’s very thin and it squashes down. The water you’re seeing is seeping along in the tiny gaps between the threads. PTFE seals that gap.

Brimble

Sorry everyone, I've wasted your time this evening - thanks to the comments on here, I had another go with PTFE tape, using a few more turns, and now it seems ok. We've turned the water on, and the water softener on, so will see over the next 24 hours if anything bad happens (I must admit, I'll be terrified tonight, I doubt I'll sleep! 😂 ).

Thanks to everyone for your help, we wouldn't have been able to do this without this page. I'll come back here tomorrow evening to confirm whether any problems have arisen, in the mean time, have a good evening all.

bjorn_toby_wilde

Good stuff.

The washer we referred to is actually visible in one of your pictures, where you measured the width of the fitting at 26mm it’s stuck to the end. 😊

WIAWSNB

bjorn_toby_wilde said:

Good stuff.

The washer we referred to is actually visible in one of your pictures, where you measured the width of the fitting at 26mm it’s stuck to the end. 😊

Blimey! Yes, that does look like a washer. My bad, I'd assumed there wouldn't be one.

In that case, all that needs doing is for the new spigot to be tightened down fully, so it 'seats' on that washer, and gently compresses it. 
A smear of jointing comp would have made it certain, but the PTFE should do so too. But, the presence of a washer means the spigot must be screwed fully down. It doesn't have to be tight, just screwed on until it stops - bottoms out - and then 'nipped up' a bit more. Usually a quarter to half turn more.

Brimble

Right, time to report back as promised. Good and bad news...

Good: The water softener itself, and associated connections, all seem to be fine. That was my biggest concern.

Bad: Irritatingly, there is still a tiny very slow drip on the bottom (outlet) connection between the adaptor and the tap. And when I say slow, I mean it drips maybe once an hour or something like that. Now, if I weren't in this thread I'd probably be tempted just to let it do that into a cup, and empty it every couple of months or whatever, but I suspect you will all tell me that really I should fix it... (?)

Given the recent observations above that actually it did originally have a washer in it (though I don't understand how, because the old hoses also both have washers in both ends, so does that mean one connection had two washers in it?), I think I'll just get some washers when I have time (in the next week or so - presumably it's not urgent?), and fix it properly. I understand that means doing it right up to the 'end' lightly, then another say 1/4 to 1/2 turn more, when it first 'bites' into the washer without damaging it - so hopefully that will seal it properly.

WIAWSNB

Brimble said:

Right, time to report back as promised. Good and bad news...

Good: The water softener itself, and associated connections, all seem to be fine. That was my biggest concern.

Bad: Irritatingly, there is still a tiny very slow drip on the bottom (outlet) connection between the adaptor and the tap. And when I say slow, I mean it drips maybe once an hour or something like that. Now, if I weren't in this thread I'd probably be tempted just to let it do that into a cup, and empty it every couple of months or whatever, but I suspect you will all tell me that really I should fix it... (?)

Given the recent observations above that actually it did originally have a washer in it (though I don't understand how, because the old hoses also both have washers in both ends, so does that mean one connection had two washers in it?), I think I'll just get some washers when I have time (in the next week or so - presumably it's not urgent?), and fix it properly. I understand that means doing it right up to the 'end' lightly, then another say 1/4 to 1/2 turn more, when it first 'bites' into the washer without damaging it - so hopefully that will seal it properly.

Nice job.
I had missed the washer myself, and it took btw to point it out.
I bet washers didn't come with the new adaptors, tho'?
Anyhoo, are you saying there deffo isn't a washer on the dripping connection? In that case, I'd undo the adaptor and take it to a plumbers merchant, and ask them for a washer that fits in there snugly. 
Failing that, I'm sure joint compound will do the trick, but washer is cheaper and easier.
Give both side of the fibre washer and the fitting threads a nice coat of whatever you have at home; olive oil, vaseline, whatevs. It'll lube it, and help seal. 

bjorn_toby_wilde

Seconded. It should have a 3/4 washer like the ones I linked to above. That plus a few turns of PTFE should seal it effectively.

If you look at the very first picture you posted, it looks like the original flexi hose may have leaked there too, as it looks a little bit crusty around the threads.

plumb1_2

Using ptfe tape in the manner you have and been advised to, is a bodge job
it will leak again, and overtime rot your cupboards 

WIAWSNB

Why don't these adaptors come with a washer?