I seem to recall someone many months ago maybe mentioning they removed the blue staining from their white SB with a Mr. Clean Magic Eraser. Not sure if we can search the forum for that to be sure though. When I've had blue staining on white things before (haven't had on my white SB however), I believe it was due to rubbing against still strongly pigmented blue jean material. My current jeans have been through the wash enough that they don't stain anything, but I suspect maybe that's the source of others' staining issues.
[doublepost=1465687640][/doublepost]A search for Mr Clean Magic Eraser turned up a number of posts like this one on various stained items:
How Is Your Watch Holding Up?
[doublepost=1465687640][/doublepost]A search for Mr Clean Magic Eraser turned up a number of posts like this one on various stained items:
How Is Your Watch Holding Up?