Ac issue

[Harrm]

Changed my ac condenser, low pressure pipe (smaller of 2) blows off on pressure test. I did put new o ring on but it's very loose so think the pipe is well worn. Does this mean whole line needs changing? and how big a job is it? Can it be cut and recoupled and does any1 recommend any1 to carry out the work. South wales area

[ZMANALEX]

The whole line will require changing but it is not a big job.

Lines are in stock if required.