Caustic Sewers

Caustic Sewers, also known as CS, is a dungeon found in the Tanren Undercity. The green water in this dungeon can poison a water, flying, or levitating Pokémon, so bringing a Pokémon with Refresh will help you throughout this dungeon.

Scenery
Lower Floors Middle Floors Upper Floors
 * Floors 1-11Sewerslow.png
 * Floors 11-20Sewers.png
 * Floors 21-30

Boss
The boss is a resemblance to Team Skull from Explorers of Time/Darkness/Sky, which are Skuntank, Koffing, and Zubat. Skuntank drops 35 Ekops when it's defeated. Koffing and Zubat drop 1 Tiny Mushroom each.
 * Skuntank
 * Koffing
 * Zubat

Pokémon
The Pokémon here are mostly Poison, Ghost, Dark, and Steel.

''Pokémon in bold are recruitable. Please visit the Recruitable Pokémon page for more information.''

Items:

 * Relic Copper
 * Relic Silver
 * Relic Gold


 * Ekop
 * Rotten Apple
 * Kebia Berry
 * Oran Berry
 * Grimy Food
 * Grimy Berry
 * Stamina Band
 * Cleanse Orb
 * Recycle Orb
 * Trawl Orb
 * Mobile Orb
 * TM Toxic

Kecleon Shop Items
The Kecleon shop in Caustic Sewers spawns on 28F. Note that in case of a small room the shop may fail to spawn.

Dungeon Objective
As with most dungeons, the goal is to complete it and go to Ancient Caustic Sewers. Caustic Sewers is also a location where a Pink Silk may be obtained. This can be accomplished by unlocking the Sealed Chamber on 25F with a Silver Key and having the contents of the box contained appraised. Secret Room: Ending box:
 * TM Toxic
 * Poison Dust
 * TM Venoshock
 * Full Restore
 * Big Nugget
 * Max Revive
 * Purity Relic

Tips
Bring a Pokémon with Refresh.

Purity relic/Safeguard/Status immunity gems are recommended.

There is a kecleon shop at 28f

Trivia
Caustic Sewers has one of the highest level ranges out of all the Tanren Undercity dungeons.