Why is the Red Line running a little slow Tuesday, Wednesday and Thursday nights? Probably because these orange-vested types are cleaning out the pipes under the tracks. Metro's repair guys and gals send a little camera snaking down the pipes to look for gunk – I'm not sure if "gunk" is the technical term for it, actually – and they follow it with what looks to me like a giant vacuum cleaner.
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Results tagged “hardwater”
Flossing the Red Line
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