"'Mike'" writes:

Question. Has anyone the experience of having mains pressure on the hose ALL
the time and only using the 'far end' with a spray or nozzle as and when
required?

Can Hozelock Hose withstand that sustained pressure?

It tends to inflate over time and not relax back to its original
diameter. This is fine as long as you never want to add new connectors
partway along.

Anthony