Barrel of Drinking Water

 is a container.

Obtaining

 * Dropped by
 * Bacterrible
 * Bashillus
 * Blue Snapper
 * Blue Turtle
 * Crab
 * Green Snapper
 * Green Turtle
 * Kloon Snapper
 * Kokoko
 * Kokonut
 * Kung-Fu Pingwin
 * Mama Pingwin
 * Mumussel
 * Orange Snapper
 * Pathogerm
 * Pingwinkle
 * Pingwobble
 * Protoz'orror
 * Raul Mops
 * Red Turtle
 * Rokoko
 * Royal Pingwin
 * Shaman Pingwin
 * Sponge Mob
 * Starfish Trooper
 * Tikokoko
 * Verminoculate
 * Viring
 * White Snapper
 * Yellow Turtle