"drmrbrewer" wrote ...

beccabunga;830832 Wrote:
A little spray of WD40 should do the trick.


I have tried WD40, but perhaps I didn't quite hit the spot. Do these
things last forever, then?


Depends on how good they were to start with, the good ones are expensive but
do last a very long time. Doubt you would find them at any GC, you would
need to shop at a specialist.
You mentioned a black cylinder, I think those are some of the cheaper ones
and I've had a problem with them in the past where, after only a few years,
they got weaker and weaker and slower and slower at opening, presumably the
oil leaks out.
Nothing lasts for ever though.

--
Regards
Bob Hobden