It's not the copper necessarily that you need to worry about but the jointing method and system treatment.
Regard:
This fitting fell apart when moved, revealing a rather clogged feed to the heating system. Hot water was not the most generous in this place it turned out.
Joint had held for nearly 30 years though. However, it would only have taken a knock by an unwitting heating engineer, or the cleaning lady with her mops and a rather sludgy mess would have ensued.
Regard:
This fitting fell apart when moved, revealing a rather clogged feed to the heating system. Hot water was not the most generous in this place it turned out.
Joint had held for nearly 30 years though. However, it would only have taken a knock by an unwitting heating engineer, or the cleaning lady with her mops and a rather sludgy mess would have ensued.