{Kyle, Chandra}

This morning Kyle and I attempted to test the newly installed turbo station and hepta roughing pump at mid-Y by simulating a pump down, after Kyle rewired panels by adding relays for valve open/closed positions. But first we vented the turbo and replaced the foreline vent valve with a blank.

We ran into some kinks and were not able to complete the full test, but we did demonstrate a successful rework on the panel wiring. The pressure relief on the Hepta inlet leaks a lot and prevented us from reaching base pressure at roughing inlet so Kyle replaced with conflat blank.

The turbo spun from about noon to 1:30 pm local time to restore vacuum on other side of turbo isolation gate valve.