how to join flexible tap connectors to pipe

I thought the flexible tails supplied with my new kitchen mixer tap would have compression joints on their ends, but they're the kind with the little rubber washer.

How do I join them to my copper pipes please?

I don't suppose it's as simple as removing the olive from an isolator valve, and just screwing that into it...?

Really grateful for anybody who can answer quickly as I'm up to my knees in it in the kitchen

Thanks

Pop down to screwfix with the flexi hose and they'll give you the bit you want.

You could screw it on to the end of you iso valve where the olive and nut would normally sit, but unless the end of the iso valve has a flat end it will cut through the rubber washer. It might work over night if its an emergency but don't leave it like that.

https://www.screwfix.com/p/tesla-br...g-flexible-tap-connectors-15mm-x-2-pack/2665r

You can sometimes get away with these...

https://www.screwfix.com/p/compression-adapting-male-coupler-15mm-x/69358

Gasguru said:

https://www.screwfix.com/p/tesla-br...g-flexible-tap-connectors-15mm-x-2-pack/2665r

Click to expand...

Some say good old Screwfix... but no, they have none in stock, so it'll be Wednesday before I see these.

Thanks everybody - everything sealed up now, and I can manage without a kitchen tap till Wed.

So this is the tap I got - as you can see, it says "compression fitting". To me, that means the kind with a brass olive in it, but then, what do I know...

Roger465 said:

Some say good old Screwfix... but no, they have none in stock

Click to expand...

Same old story!!

Give Toolstation a crack

Nozzle

Nozzle said:

Same old story!!

Nozzle

Click to expand...

You know, I've always been pretty pro-SF, but this has seriously ****ed me off

You could always do it properly, and simply ask for a pair of 15mm x half inch male irons

File down the sharp edge of the outlet of the ISO valve with a flat file. You'll end up with a flat end that won't cut into the rubber sealing washer. Only takes a minute as the brass is soft.

They are classed as compression as you need to compress the rubber seal between the male and female end to create the seal.

Yup. As per @Madrab just file it flat or leave it as is... There's many I have and haven't been called back to one yet... Now I've jinxed it!

Or this one...

https://www.screwfix.com/p/pegler-brass-compression-adapting-male-coupler-15mm-x/5583g

Roger465 said:

I don't suppose it's as simple as removing the olive from an isolator valve, and just screwing that into it...?

Click to expand...

No, you put these into the isolator:
https://www.toolstation.com/tap-tail-adaptors/p14081
which have flat ends and won't slice the rubber washer.

Madrab said:

They are classed as compression as you need to compress the rubber seal between the male and female end to create the seal.

Click to expand...

Ummm… yeah, I get that, but… don’t you call the kind with olives “compression fittings”?

Anyway, I was temped to get the file out, but have ordered a couple of the tap tail adapter thingies, so just have to wait till Wednesday.

Roger465 said:

Ummm… yeah, I get that, but… don’t you call the kind with olives “compression fittings”?

Click to expand...

Yes, you do indeed, but any fitting that needs to compress something between two surfaces is classed as a compression fitting, whether that's a metal olive or a rubber seal.

When I get a a supply of ISO valves I just use the flat side of the bench grinder and flatten them all. When you do lots it saves a bit of cash

Madrab said:

Yes, you do indeed, but any fitting that needs to compress something between two surfaces is classed as a compression fitting, whether that's a metal olive or a rubber seal.

When I get a a supply of ISO valves I just use the flat side of the bench grinder and flatten them all. When you do lots it saves a bit of cash

Img_2173

• Madrab
• 28 Oct 2019

ISO

Click to expand...

Thanks Rob - but, for somebody like me, probably best to just use the wee adapters.

Here’s another gem which will amuse you, dilalio, and the others who’ve been kind enough to follow my adventures in plumbing over the last couple of years… in installing the new taps, I’ve had to remove a tangle of all sorts of ancient pipes and different kinds of joints – a real mess.

Maybe 6 or 9 months ago, I had a new stopcock fitted to the cold riser under this sink, as turning the old one off had no effect – the mains cold water just kept on flowing. So yesterday I was left with just a bit of copper pipe sticking up, ready to connect the tail of the new tap to. Obviously the stopcock tap was turned off tightly (and had been for hours since before I cut the pipe above it).

Last night, as I was just about to go down to SF to get the new mixer unit, suddenly water started to pour from the copper pipe, as if I’d opened the stopcock. I quickly tightened it a bit more, and the water stopped. If it had happened 20 seconds later, it would have flooded the house while I was down at SF.

Any idea why this would happened?? Have you ever known a tap to behave this way, ie hold for hours then suddenly start releasing water? I know I’m an amateur, comically trying to learn some of the basics here, but the new stopcock was installed by a plumber with something like 40 years’ experience.

I’ve capped the pipe above with an isolator valve for now, in case it happens again, but of course now I don’t feel I can trust the stopcock. Not sure how much faith I have in the plumber either, but at the end of the day he fitted a big brass tap – if it suddenly fails internally, I don’t suppose I can blame him.

There’s obviously an outside stopcock next to the street too, but I can’t get the plastic cover up