Where are copper pipes mainly found?
they were often used for plumbing projects of various kinds. carry clean water, set up a moonshine still, carry out drain and waste water science labs b/c of durability, and minimal interaction with other stuff. plumbing store? {sorry, couldn't resist.} metal recycling places {couldn't leave that one out, either}
In the copper's locker room near the Confiscated Drug Storage room.
