In The Hague we’ll drop this helicopter view to get down into the specifics of sanitation systems, safe water systems, systems in fragile states, finance and monitoring systems.
Behind that drink is a system, or a collection of systems (with systems it all depends on your point of view).
Both are part of an effective public system.
Systems for production, systems for distribution, formal and informal.
Universal provision of safe water and sanitation are public services.