
The water quality in this area is concerning, and a mission in Arc Raiders tasks you with fixing it. You’ll need to venture into the Spaceport tunnels and operate a valve to redirect the water supply. While the quest, ‘Switching the Supply,’ is generally simple, the valve itself can be difficult to find. This guide will walk you through completing the ‘Switching the Supply’ quest in Arc Raiders.
Before you start, remember you won’t need any special gear to finish this mission. Feel free to use an empty loadout, just in case your plans change. Spaceport is a risky area, so it’s always best to be prepared and avoid unnecessary risks.
With that out of the way, let’s switch the supply.
Table of Contents [hide]
- Where to find the tunnels under the Spaceport
- Where to find the valve in the Spaceport tunnels
Where to find the tunnels under the Spaceport
Your first task is to locate the tunnels beneath the Spaceport. You’ll find them by looking for a large hole in the ground directly in front of the Spaceport Launch Towers, which are in the center of the map. It’s fairly easy to see once you know where to look.
Carefully climb down into the hole where the cement has fallen. Once you’re at the bottom, locate the valve and turn off the water.
Where to find the valve in the Spaceport tunnels
Just so you know, the valve you’re looking for is much closer than you think – it’s near where you first entered the tunnels.
When you enter the tunnels, go around the back of one of the broken concrete sections and look at the wall to your right. You’ll find a red valve on a pipe there. Use it to turn on the water and finish the quest.

Now that you’re not focused on finding specific items, feel free to explore and collect loot at your own pace. The tunnels offer a lot of valuable items, and they’re a safe haven from the dangerous ARC creatures roaming above. When you’re done, you can exit the way you entered and use any available extraction point to return to Speranza.
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2025-11-05 21:12