Alternative journal entry:
You've activated a water valve in the tunnels beneath Zhu's Hope. There are likely others that need your attention as well.
Speak to Macha near the entrance to the Zhu's Hope colony. This can be done at any time after speaking with Fai Dan for the first time, and subsequently eliminating the geth that interrupt your conversation. Alternatively, this assignment can be acquired by reactivating one of the water valves before talking to Macha.
When all three valves have been opened, leave the tunnels and return to Macha Doyle for the reward.
Warning: If you killed Macha during the main Feros mission you can still acquire, but not complete, this assignment.
See Also Edit
The following assignments can also be completed while in the tunnels: