As seen in the attached pressure graph, the XBM pressure isn't following the expected pump down curve.  Since GV2 was closed, thus isolating the XBM from the adjacent volumes, the pressure has been rising, flat or not decreasing etc.. In this configuration, IP6 and the XBM MTP are the only pumps pumping.  Chandra R. had suspected previously that IP6 may be dying.  Even so, I would expect that the symptom would be a loss of net pump speed. With the LVEA temperature constant, I'm wondering if this apparent increase is something else, like.....?