You can't change the olive without cutting the old one off the hose. So it will become 1,5cm shorter or so. But if the olive that's one there now doesn't look too deformed you can get away with reusing it.
Ah OK. Thanks alot.
@Stoo61 started
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You can't change the olive without cutting the old one off the hose. So it will become 1,5cm shorter or so. But if the olive that's one there now doesn't look too deformed you can get away with reusing it.