Recently I have purchased some old and used Chromega print drums that have a coating of silver on the inside. Anyone have a recommendation on a cleaner to get them like new? Jobo Processor Clean II is gone and Lysol Toilet Cleaner doesn't do it, so I need some suggestions before I try running paper through them. They are large 20x24 drums, so I definitely don't want to waste paper in dirty drums. Does Kodak Developer System Cleaner and Neutralizer work?