In message , Tim Watts
writes
On 16/06/16 06:49, Thomas Prufer wrote:
On Wed, 15 Jun 2016 22:27:51 +0100, Jackson wrote:

When you screw in an outside tap into the wall plate, how do you ensure that
the tap is screwed in very tightly to the wall plate so that it will
not move
or leak - and the tap is itself vertical?

PTFE tape will/may leak if turned backwards.

You don't turn it backwards

Loctite 555 thread says it can be

What's 555? I can't find it on the Loctite site.

I think he means 55 :-) It's PTFE cord.

http://www.loctite.co.uk/loctite-408...=8802627059713

turned back up to 45° without leaking...

(Or use hemp.)

Not allowed on potable plumbing - unless it's the hemp replacement
which is PTFE "fluff" or "string"

See above.

I find it works well.

--
Chris French