On 09/11/2019 16:35, Lee Nowell wrote:
Sorry Richard should have mentioned that I file the ends of the isolation valve flat before fitting. Wonder if this one I didn't do it enough. Will take a look at your fitting sounds like it is just the job although I hate compression fittings as mine take several attempts before they are sealed

Nobody used these? Made for the job.

https://www.toolstation.com/tap-tail-adaptors/p14081

--
Dave
The Medway Handyman