Bubba G., Chandra R., Chris S., Gerardo M., Kyle R.

Installed HAM1 East, HAM6 East and HAM1 West doors today -> Chandra R. opted to not replace the O-ring(s) on HAM1 West door upon close inspection with high-intensity lighting. 

Following installation of HAM6's door, I noticed that the sound of the purge-air expelling into the clean room did not change as a result.  This is not normal.  Investigation revealed that the 1 1/2" metal seal purge-air valve was closed (hand tight).  As such, no purge air was being routed into HAM6.  I had reduced the flow yesterday? Monday? at others request but today, flow into HAM6 was fully blocked-off.  We are conditioned to assume that the purge-air is always valved-in when doors are off of a chamber because that is the state that we want to leave it but we may now have to consider that multiple people will be adjusting this and not assume that flow hasn't been altered.

Chandra R. and Gerardo M. helium leak checked the outer O-ring of the newly installed door on HAM6. 

More vent recovery to follow tomorrow. 

NOTE TO IFO community -> the unlocked HAM2 HEPI crossbeams had been stepped on (by accident) at some point during the HAM1 door installation today.