How to Purify and Trade Water in Probably Stolen

In Probably Stolen, you will be trading all sorts of items as a shopkeeper, from counterfeit cigarettes and illegal substances to everyday goods like toothpaste. Water is another item you can sell for a good profit. However, trading it is not as simple as putting it on the shelf. You'll first need to unlock water trading, then learn how to check its purity and clean it before selling. This guide will cover everything you need to know.