Replacing basin tap but flexible pipe to replace

[Welder]

Flexi pipes like these are, really, a bit of a 'bodge' and have no genuine longevity.

 

[ShaunCorbs]

Any 1/2 flex to compression will fit

 

[Harvest Fields]

Go rigid if you can if not then use flexi. Or get a pro in and go 50/50

 

[Luca]

Hold 3 stationary and turn 2 (counterclockwise)

 

[ShaunCorbs]

Correct eg 2 away from uou

 

[Ben-gee]

What you have drawn in the picture is tightening it up! No wonder you've been struggling!
Hold 3 and turn 2 the opposite way to your drawing.

 

[Ric2013]

Flexi pipes like these are, really, a bit of a 'bodge' and have no genuine longevity.

My feeling exactly.

However, I have seen bathrooms in Italy: steel tubing inside wall, with a short flexi from the wall to the tap. And no one carries out routine replacements. They do seem to last okay. I suspect the difference is that both ends of the flexi are properly supported, whereas the OP's system seems to use a flexi to hang a pipe from the tap, which must inevitably lead to increased strain.

OP: If you must use flexis, go to BES (online) and get one of their WRAS approved ones. Reasonable quality for a reasonable price. If you will buy cheap, unapproved products from the likes of Amazon, please bear in mind they are illegal to install anyway (although prosecution is probably reasonably unlikely, for the sake of the quality of the drinking water in the public network (and in your home), don't put drinking water into contact with unapproved materials). EDIT - I'm not talking about the taps, which, being Bristan, will be fine.

 

[Luca]

What you have drawn in the picture is tightening it up! No wonder you've been struggling!
Hold 3 and turn 2 the opposite way to your drawing.

Sorry but I'm really a beginner

 

[Ric2013]

Sorry but I'm really a beginner

That's what forums are for sometimes!

 

[Luca]

A big thanks to everyone for your precious support!!