Any burst flexible connector that is has been installed for 10 years will not be covered under their premium.
So I have been changing quite a few recently.
We have the Flexible connectors with Pex pipe inside.
They are not as flexible as the common ones, but are the only ones I will install from now on - unless supplied with the unit to be installed.
Interesting on the Insurance company's front - claiming they will not insure flexi's over 10 years old