From Wynncraft Wiki
A Water Bottle is a miscellaneous item, which is required by few quests.
- You can obtain water bottles from other players, from buying one from a merchant in Ragni (-883, -1688), from Rymek for 1 Emerald, or from Scarabs located in the Desert.
- You can also obtain water bottles by killing Dry Zombies and Enchanted Bottle in and around Almuj.
- There was a bug, that it you hit a mob using Potion of Healing, it will change into Water Bottle, but if you drink it, you will get hearts healed. (Outdated)