We started pumping down HAM6 this morning with scroll pump cart. Kyle and I also He leak checked HAM1 east/west doors and found no leaks with a background of 5e-9 Torr-L/s. HAM1 pumpdown pending. We also blew down both chambers and measured dew points:
HAM1: -26°C
HAM6: -18°C
HAM6 dew point is relatively high, likely from purge air being valved out for hours/days prior to door installation.