What does the flashing light on the send console in the Comm Room mean


Hint 1 of 5:
The color's important.

Hint 2 of 5:
You can find coolants in the Machine Shop.

Hint 3 of 5:
And there are colored buttons on the chemical dispenser.

Hint 4 of 5:
Pour the color of chemical of the light into the hole.

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