In article ,
G.W. Walker wrote:
...how do you stop compression fittings from leaking? I
plumbed in some new stuff at the weekend, but lots of the
joints are now leaking. I resisted using PTFE tape on
every single joint, but is that the answer? PTFE wrapped
around every olive..?

Either you've not tightened them properly, you've had a poor quality batch
(unlikely), or your preparation was poor.

The pipe must be undamaged and cut square with a proper cutter. Then
cleaned till it gleams with either wire wool or a suitable abrasive
material.

Examine the mating surfaces of the olive and fitting for signs of damage
or swarf etc. And it should be spotlessly clean - same as the pipe.

If all this proves OK a properly tightened compression fitting won't leak.

--
*Avoid clichés like the plague. (They're old hat.) *

Dave Plowman London SW
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