I just noticed a damp spot underneath an area of the pipe and a corresponding light wetness along the bottomside of the pipe. Looking more closely, there was an irregular hairline crack in the pipe, extending perhaps 2-3 inches.
The discharge is (currently) clear and odorless and is truly minimal -- i.e. you can't even see drops dripping it is so slow.
So, short of replacing the pipe, what can i do to fix it?