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Sink (Old World Blues)

FO76 publicteam xpd.pngFor an overview of the topic, see Sink.

Between you and me, I think the Central Intelligence Unit is a bit of a snob.

Sink is an Artificial Intelligence at Big MT in the Fallout: New Vegas add-on Old World Blues.


Sink is a talking faucet located in the Sink. Like other systems in the Sink, it was disabled shortly after Dr. Mobius left the Think Tank for the Forbidden Zone. Once Sink's personality back-up is recovered from the Magnetohydraulics Complex and activated, she is able to provide the Courier with clean drinking water.

Through dialogue, it becomes clear that Sink is obsessed with cleaning and despises dirty things. Upon further investigation, it appears Sink was supposed to come with a module that would allow it to dispense water into non-organic materials. This module is located at the Construction Site.

Interactions overview

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This character is essential. Essential characters cannot be killed.
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This character is involved in quests.


Effects of player's actions

  • When the Courier finishes Old World Blues, Sink attempts to flood Big MT to "clean it."
  • Sink, with its basic function, provides the player character with an unlimited source of clean drinking water. With the water production upgrade, it is able to fill empty bottles with water, turning them into bottles of Purified Water.

The types of empty bottles that can be made into bottles of purified water include:


In Hardcore Mode, when the Sink's personality matrix is on, drinking from it will reduce Dehydration by 25 per drink. When the personality matrix is off, it reduces dehydration by 200 per drink. If the Courier also has an eligible container that can be filled and selects the choice to have it filled, the Sink gives the choice of filling the container(s) or drinking. If "drink" is chosen, hydration will be reduced by 200, not 25.



The Sink appears only in the Fallout: New Vegas add-on Old World Blues.