Drainage

Overview

Drainage is a Triumph in Destiny 2 worth 15 points. It is one of the four Nightmare triumphs in Fever Dream, introduced in Season of the Haunted.

How to complete

On the Derelict Leviathan, clear the Haunted Alcove connected to an old, unused passage. Clearing the alcove completes the triumph.

Drainage counts toward Fever Dream, which is complete when all four of these alcoves are cleared:

• Sporest of Beasts: the Haunted Alcove guarded by resting hounds.
• Nightmare Breached: the Haunted Alcove opposite Calus.
• Drainage: the Haunted Alcove connected to an old, unused passage.
• Ritual Under Shadow: the Haunted Alcove passageway containing a Nightmare ritual.

Fever Dream requires all four.