"Chris Bacon" wrote in message
...
Bookworm wrote:
Nigel Molesworth wrote:
PTFE tape is not for compression joints. Use Boss White.

Wrong. Been using PTFE tape on Compression Joints (where needed) for 30
years.

When is tape or anything else needed for compression
joints? The joint is watertight metal on metal.

In theory you are right. In practice a smear of jointing paste is needed to
fill in any imperfections in the olive, fitting and pipe.