We run 3 chlorine compressors in a pulp mill that we have a lot of trouble with. After an overhaul we have to run them on dry air for 2 or 3 days as you cannot put them on chlorine with any moisture in the system. Even with careful checks we still miss some minor leaks that are unacceptable with chlorine. Does anyone know of a a non organic aromatic we could introduce in the dry air stage of start up to pick up these leaks. Thanks, Rex Devantier.