"Phil L" wrote in message
k...
Would you resist using a blowtorch if you were using solder joints?

This is what PTFE is for,

********!!

very rarely can a watertight seal be achieved without it....they just don't
tighten up properly.

A compression fitting is DESIGNED to give a watertight (and gas tight - with
the correct fiiting) with only itself and the olive. PTFE tape is not a
'"must include" extra for every fitting. If done correctly a compression
fitting WILL be leak free without PTFE.

HTH

John