Dave Plowman (News) wrote:
In article . com,
George Tingsley wrote:
PTFE can be used on the threads but never on the olive

Why? PTFE tape in practice is little different from a sealing compound. It
may not be necessary, but just what harm does it do?


Ok never say never
But as Calor say in their web page a compression fitting with pipe
olive coupling and nut in perfect condition should not have any gunk
applied to interfere with the mating surface or contaminate the water
or gas supply
I once went to a gas fire that was not working when I dismantled it I
removed a 6 inch length of ptfe tape that was blocking the jet how that
got inside the pipe only God knows

Never in this case means best working practices people new to plumbing
should be aware that compression fittings were never designed to need
additional sealing around the olive and should avoid making joins like
the top picture as routine
http://www.calormarineshop.co.uk/boa...on_fitting.htm

But sooner or later you will encounter the stopcock buried under
kitchen cabinets or the elec shower with only nut-olive protruding out
of a tiled wall which will leak and be impractical to replace
Then you can try ptfe or boss white to affect a cure
I keep a tube of Hermetite instant gasket in the toolbox for such
bodgery

--
*Friends help you move. Real friends help you move bodies.

Dave Plowman London SW
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