Shutdown tylan6 SNF 2007-07-30 15:21:05: exhaust problems

[maurice at snf.stanford.edu]

System is back together.  The door gasket and front door assembly has  been replaced and are suspected to be the cause of
the leaks.
System may be used during dayshift when staff is around and staff should be notified beforesystem is run.
User must watch system while it is in use.