Sorted it and then had to just tighten the back nut on a tank fed basin tap. The Speedfit tap fitting onto copper pipe began leaking badly when I turned the tap.
Pipe was full into the Speedfit fitting, yet water pees out of it.
Not my work (I only use copper) and is a lot of years old.
Lost me a couple hours sorting it.
Complete tat and to think that is supposed to be one of the better push fit brands.