Finally solved the waterflow issue thanks to @femch fwy on the Barotrauma Sub Building discord channel.

Fixed some waterflow issues
Powered pump in Chaingun gunnary
Added Displays in Command room for Depth
Added a few more chairs. Some obvious, others not so much.

FIXES
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- Pushed back button sprite for Acoustic Defense System
- Pushed back the curtain for the Captain's Quarters
- Powered the Adaptive Fab in Engineering
- Powered the status monitor in Medbay
- Adjusted ST3-11A's speaker location so she can be heard throughout the sub
- Re-wired the battery backup to actually be a battery back-up that can be toggled from the navigation console

ADDITIONS
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- Added the ability for 2 people to lie down next to each to each other in the captain's quarters
- Replaced the Distillery sprite at the bar with the updated functional Distillery from Hungry Europans

- FIXES -

- Linked Depth Charge loader to Depth Charge Tube
- Labeled active signals on Sonar console as well as Signal Switchboard in Command room
- Powered sump pump in Upper Airlock, above the restroom
- Powered Charging dock in Command Room

- NEW -
- Added a Button on STE-11A for "Powering Up the AI"
- Added Displays on the Medical monitors attached to navigation console, displaying Reactor Power output & Grid Load
- Added a "Hat Rack" in MudRaptor's mouth in the Bathroom

Sorry Folks, If there's anything not working or busted please comment below so that I can address it.