Before you pull your carpet... My basement has been smelling musty for sometime. After several days of searching the basement and stairway for the source, I finally realized it might be the washing machine. This morning I ran an empty load with hot water and 2 cups of vinegar. During the cycle the musty smell was worse than ever, but by the time I got home from work this afternoon the smell was entirely gone. I hope your smell is as simple a fix as mine was.
9/12/09 at 2:24am