While Once Human is largely a looter shooter, it does contain survival elements, such as the need to stay hydrated. Water is largely poisonous in Once Human, but there is a way to purify it so that it is clean and drinkable.
Once a Man | Beginner's Tip: The Fastest Way to Get Clean Drinking Water
In most cases, when you find water, whether it’s been looted from somewhere or collected from a body in the game world, you’ll find it daunting to drink due to the corruption that’s taking over everything. While you can certainly drink this filthy water to quench your thirst, it comes at the cost of a large amount of Sanity, which isn’t good.
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Instead of drinking dirty water, I suggest you clean it with a Stove. A Stove is a facility that you can build on your property using materials that are fairly commonplace in Once Human.