[Mark D, Tyler G, Bubba G, Kyle R. Gerardo M. Chandra R]

Team effort today installing, leak checking, and activating ion pump #4. Mark, Tyler, and Bubba installed the pump this morning (thanks, guys!) and then Kyle and Gerardo leak checked with calibrated leak detector. We found a small (1.9 Torr-L/s) He leak at the 8" CFF (from factory bake?). I tightened the fasteners and made leak significantly worse (e-8 range), but then Kyle improved it with some muscle. We're calling it good at 1.1e-9 Torr-L/s He and turned high voltages on. Current was high to start (23 mA), but coming down with time.