FIXED

17 02 2011

All photos.

I found the fucking leak. It was the glass viewport. The passivation ate the metal between the glass and the steel:

For the record: do not passivate glass viewports.

I found the leak by listening. Late last night the building was quiet enough to hear the leak. I didn’t hear a hissing so much as I heard the sound of the pump emanating from the surface of the glass.

NOW THE EXPERIMENT CAN PROCEED!!

I will let the pump run overnight to see how deep a vacuum we can get with just blanks.

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