Mark Donovan, of HomeAdditionPlus.com
shows how to replace an old door knob in this video.
As someone once told me, a home is not self maintaining, and that
includes door knobs. Door knobs, particularly those that are located in
bathrooms, are more than likely to look ragged after just several years due
to the high humidity found in bathrooms. Frequently the finish can be found
peeling off.
When this situation arises its time to replace the door knob. Fortunately
it is inexpensive and easy to do.