Hmm, thanks for your answer, my black version came with that black o-ring installed, I think you exchan ged yours manually with the green one supplied, right? I might give it a try anyway to change that O ring. Thanks!
EDIT: upon further research I found different pictures of that lower O ring ... that makes me wonder how it´s supposed to be right...
See this, that´s mainly how it looks on my version:
And here another one, O ring looks different:
EDIT: upon further research I found different pictures of that lower O ring ... that makes me wonder how it´s supposed to be right...
See this, that´s mainly how it looks on my version:
And here another one, O ring looks different:
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