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Water Barrels are Barrels filled with water that are found only in Super Mario Sunshine. They can be picked up by Mario and thrown at large amounts of graffiti to wash it away. Using Water Barrels to wash away Goop is significantly faster than using F.L.U.D.D. to do so. Water Barrels can also be Ground Pounded to refill F.L.U.D.D.'s tank. These barrels are especially useful in Episode 6 of Sirena Beach, where Mario must clean goop covering a large portion of the beach very quickly. In Episode 4 of Pianta Village, a single Water Barrel can be used to cool down the overheated Chain Chomp instantly.