Making a few manual adjustments to VBOs in VPW fow tomorrow.  

Inspected purge air.  Cheryl V. had noted low supply on Friday -> I observed low flow when processed air being routed through left drying tower and typical flow when on right tower.  I had noted this behavior in previous log entry.  I suspect that this started when last the tower desiccant had been changed.  Don't have a flow meter in system so only can make qualitative observations.  It may be that the left tower had too much desiccant added or perhaps the two towers have different media size?  In any case, it seems that the left tower is more restrictive to flow than is the right tower.  For post O2 in-chamber activity, so many doors have been removed as to make this situation mute.  The measured dew point is still typical for the "maximum demand state" as has been the case post O2 (-30C < dew point < -25C).  

We should evaluate the cause of this when next the Purge Air system can be shut down.  

Measured dew point at OMC vent/purge check valve = -28C.  

1405 hrs. local -> Leaving site now.