[Steve, Eric]

I've been helping Steve vent this morning. The following things were done (from Steve's logbook):

• Particle counts: 0.5 micron particles, 4200 counts per cubic ft
• Vertex crane drive checked to be ok
• Optical Levers set for local damping only
• Saved some screens
• PSL shutter and green shutters closed
• HV Off checked, JAM nuts checked
• Vac: Close V1, VM1, ans - VA6, open VM3 - RGA, cond: chamber open mode
• 8AM: VV1 open to N2, regulator set  to 14 psi
• 8:23AM: 35psi Instrument grade Air

(At this point, I took over the air canisters, while Steve made preparations around the lab. 

• 9:00AM: 2nd air cylinder, 14 psi 
• 9:40AM: 3rd air cyl
• 10:20AM: 4th air cyl
• 11:00AM: 5th air cyl

With the 5th cylinder, we began approaching 1 atm, so we slowed the regulator down to 5psi. Around 750 torr, Steve opened VV1 to air.

According to Steve, we will be at atmospheric pressure at  ~12:30pm.