In article ,
Roger Hayter wrote:
On 12 Jun 2021 at 08:59:33 BST, ""Jim GM4DHJ ...""
wrote:

On 11/06/2021 12:58, Roger Hayter wrote:
On 11 Jun 2021 at 10:55:10 BST, ""Dave Plowman" News)"
wrote:

In article , Roger Hayter
wrote:
The next question is whether to wrap some PTFE tape round the
pipe *under* the olive. This could theoretically help the olive
to seal to slightly scratched or deformed pipe.

Good luck with that. The olive should already be a tight fit to the
tube.

I've never come across such an interference fit, or indeed an olive
that did not easily allow room for tape underneath. I don't do it
now, as failed joints with standard tightening are very rare in
practice if you polish the pipe and there are no visible scratches.
But when I did it was always possible.


underneath???.....you will be telling us next like brian reay did that
you can remove the olive after the joint has been tightened...tee hee

Actually if you put tape under and over the olive you can make a
watertight joint without deforming either the pipe or the olive. But I
*don't recommend* it. Because the joint can disassemble itself under
slight mechanical force or even water pressure.

I'd not recommend that if it is expected to last leak free.

--
*7up is good for you, signed snow white*

Dave Plowman London SW
To e-mail, change noise into sound.