On Wed, 13 Dec 2017 10:03:54 +0000, DerbyBorn wrote:

.


Not turning it hard to the fully open means that the clearances in the
threads are relaxed - rather than the thrust pressure being hard onto
the flanks if you see what I mean.

I do understand that important point. I just thought it worth mentioning
the side benefit of having two directions available for 'wriggling' the
the tap free. IOW, not just *one* good reason to back off a half or
quarter turn from fully on but *two*! :-)

--
Johnny B Good