My 9800B rejects about half of the quarters that go into it. Sometimes after "shooting" them in there, it'll take it but most of the time if it doesnt take it the first time, it aint having it. It says on the rejector to only use warm soapy water to clean. But having never cleaned one before i was wondering if a cleaning would help rectify the quarter rejection problem. And do i just drop it in? Do i do any scrubbing?