I have just been fixing a leak where copper pipe was joined to plastic
(polyplumb barrier pipe). For various reasons I chose to use a plastic
coupling. Is the copper pipe/plastic coupling satisfactory long term? It
is working fine as I write but soon it will be buried under the bathroom
floor and everything re-decorated I don't want to have to rip it all out
again.
(I am aware that I could have used a copper coupling and a metal insert in
the plastic pipe I just wonder if I "should" have done it that way round.)

Frank
the tentative plumber

Frank Stacey wrote:

Is the copper pipe/plastic coupling satisfactory long term?

Yes.

(I am aware that I could have used a copper coupling and a metal insert
in the plastic pipe I just wonder if I "should" have done it that way
round.)

Presumably you used a plastic insert?


--
Grunff

Grunff wrote:
Frank Stacey wrote:

Is the copper pipe/plastic coupling satisfactory long term?

Yes.

(I am aware that I could have used a copper coupling and a metal insert
in the plastic pipe I just wonder if I "should" have done it that way
round.)

Presumably you used a plastic insert?

Plastic pipe in plastic coupling doesn't need any insert. Otherwise my
new bathrooms fcuked :-(

MBQ

wrote:

Plastic pipe in plastic coupling doesn't need any insert.

Yes, it does.


Otherwise my
new bathrooms fcuked :-(

Yes, it may well be. It won't leak straight away, but the pipe will go
oval over time and you'll get leaks.

What idiot told you that you don't need inserts?


--
Grunff

On Wed, 15 Mar 2006 15:07:06 +0000, Grunff wrote:

wrote:

Plastic pipe in plastic coupling doesn't need any insert.

Yes, it does.


Otherwise my
new bathrooms fcuked :-(

Yes, it may well be. It won't leak straight away, but the pipe will go
oval over time and you'll get leaks.

What idiot told you that you don't need inserts?

Hmmm. Any Hep2O fittings I've used had had metal pipe inserts used
as per instructions .



Stuart

Grunff wrote:
wrote:

Plastic pipe in plastic coupling doesn't need any insert.

Yes, it does.


Otherwise my
new bathrooms fcuked :-(

Yes, it may well be. It won't leak straight away, but the pipe will go
oval over time and you'll get leaks.

What idiot told you that you don't need inserts?

No, I'm the idiot.

I actually used copper pipe with plastic fittings, that's why I didn't
use inserts, doh. I think I can breath again.

MBQ

wrote:

I actually used copper pipe with plastic fittings, that's why I didn't
use inserts, doh. I think I can breath again.


Yes, you don't need inserts with copper pipe...


--
Grunff

The message . com
from contains these words:

Plastic pipe in plastic coupling doesn't need any insert.

Those that I've used most assuredly did - the leaflet said so quite
emphatically.
YMMV [1]

[1] Which I've discovered means Your Mileage May Vary, not as I
originally thought You May Masturbate Vigorously. Though you may do that
as well if you like.

--
Skipweasel
Pay no attention to the man behind the curtain.

wrote:
Grunff wrote:
wrote:

Plastic pipe in plastic coupling doesn't need any insert.
Yes, it does.


Otherwise my
new bathrooms fcuked :-(
Yes, it may well be. It won't leak straight away, but the pipe will go
oval over time and you'll get leaks.

What idiot told you that you don't need inserts?

No, I'm the idiot.

I actually used copper pipe with plastic fittings, that's why I didn't
use inserts, doh. I think I can breath again.

MBQ

Thats OK.

On Wed, 15 Mar 2006 07:03:40 -0800, manatbandq wrote:


Grunff wrote:
Frank Stacey wrote:

Is the copper pipe/plastic coupling satisfactory long term?

Yes.

(I am aware that I could have used a copper coupling and a metal insert
in the plastic pipe I just wonder if I "should" have done it that way
round.)

Presumably you used a plastic insert?

Plastic pipe in plastic coupling doesn't need any insert. Otherwise my
new bathrooms fcuked :-(

Um, if you can correct this do so. Otherwise you'll _probably_ be OK but
no guarantee of course.



--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html

wrote:

Grunff wrote:

Presumably you used a plastic insert?


Plastic pipe in plastic coupling doesn't need any insert. Otherwise my
new bathrooms fcuked :-(

You want the good news or the bad news?

http://www.johnguest.com/makeconnect.asp


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

"Grunff" wrote in message
...
Frank Stacey wrote:

Is the copper pipe/plastic coupling satisfactory long term?

Yes.

(I am aware that I could have used a copper coupling and a metal insert
in the plastic pipe I just wonder if I "should" have done it that way
round.)

Presumably you used a plastic insert?


--
Grunff

Yes, I did use a plastic insert on the all plastic side.

My worry is about the long term effectiveness of copper-in-plastic versus
plastic-in-copper. So far I haven't seen anything which mentions this.
Possibly because it is a non-issue - they are equally durable.

Frank
the tentative plumber

The message
from "Frank Stacey" contains these words:

My worry is about the long term effectiveness of copper-in-plastic versus
plastic-in-copper.

I did some a decade ago and they're fine.

--
Skipweasel
Pay no attention to the man behind the curtain.