Ian Stirling wrote:
Guy King wrote:
The message
from Ian Stirling contains these words:

With 22mm compression fittings, you'll have a job breaking the
fitting so that it won't seal by overtightening.
It's probably possible, but you'll need a long spanner, and the
pipe to be restrained quite securely.

Doesn't everyone use two spanners? Perhaps that's where all the
people who've been having compression joint fittings are going
wrong, they're just using one spanner!

Two spanners helps - but you've still got an unbalanced torque left.

IMEE it's 2 pairs of grips. no spanners.