an electrostatic discharge apparatus for use with a hub and spindle assembly for a disc drive storage system comprising a spindle ; a hub rotatably mounted on the spindle ; a capsule formed at least in part from an electrically conductive material that can be placed in electrical communication with the hub and defining a chamber configured to hold an electrically conductive fluid and defining at least one capillary channel in fluid communication with an opening formed in the capsule , the opening configured to permit rotation about the spindle , and to permit a meniscus formed by the conductive fluid proximate to the opening to electrically contact the spindle during rotation of the hub about the spindle .