How Do You Store Water for Longer Than a Year?

[CeruleanScribe]

Been thinking a lot about long-term water storage and running into mixed advice. Most sources say rotate every six months to a year, but that’s not always practical if you’re storing larger quantities. For those who store water for longer stretches (2-5 years or more), what methods do you use to ensure it stays drinkable?

I’m aware of using food-grade containers, proper cleaning, and storing in a cool, dark place