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Borderlands 4
Love in the Time of Eridium Poisoning Walkthrough
☆ How Rush Saved Mercenary Day (Bounty Pack 1)
★ 12 active SHiFT Codes as of December 4, 2025
☆ Black Market Location
★ Elemental Weakness Chart
☆ Legendary Weapons
★ Builds: Vex | Amon | Rafa | Harlowe
This is a walkthrough for the Love in the Time of Eridium Poisoning side mission in Borderlands 4. Read on to follow the objectives and clear the mission.
List of Contents
How to Unlock Love in the Time of Eridium Poisoning
Complete Secrets of the Vault
You need to complete Secrets of the Vault main mission first before unlocking Love in the Time of Eridium Poisoning.
Once unlocked, you can start the side mission by talking to Brenda in The Dunk, located southwest of the Terminus District in Dominion.
Secrets of the Vault Walkthrough
Love in the Time of Eridium Poisoning Walkthrough
Shut Down Plant
| # | Walkthrough |
|---|---|
| 1 |  Follow the marked objective into the cooling plant and interact with the console next to the large door to talk to the cooling plant foreman. |
| 2 | Once the Foreman opens the door, enter the large area and clear the enemies inside. |
| 3 |  Flip the switch on the terminal in the middle of the room to try to shut down the plant. |
| 4 | Follow the marked objective to cycle the first pump. Pull the lever, then shoot the targets that light up green as fast as you can. If you're too slow, you'll have to repeat the process. |
| 5 |  Head to the second pump on the left side of the room. Pull the lever and shoot the targets that light up green as fast as you can. |
| 6 | After cycling the second pump, the Foreman will send in enemies to attack you. Kill them to proceed! |
| 7 |  Head to the third pump on the opposite side. Pull the lever and shoot the targets that light up green as fast as you can. |
| 8 | Flip the switch on the terminal again to open the door. |
Join Brenda in Reservoir
| # | Walkthrough |
|---|---|
| 1 |  Head back to where you talked to Brenda, then jump down to the reservoir to join her. |
| 2 |  Brenda and Herman will then turn on you and attack. Kill both of them! You can pick up the ECHO Log that Brenda drops as an optional objective if you want to learn why they turned on you. |
| 3 |  After defeating them, pick up the break room key from Herman and climb back up to open the door just before the ladder. Enter the break room to complete the mission. |
Love in the Time of Eridium Poisoning Rewards
| Side Mission Rewards | |
|---|---|
| Base Reward |
・EXP ・Cash |
| Weapon Reward | ・Assault Rifle (Green to Purple Rarity) |
Borderlands 4 Related Guides
List of Side Missions
Comment
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Love in the Time of Eridium Poisoning Walkthrough
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