Valency originates from public water sources and is then purified through a rigorous purification process. This purification process includes reverse osmosis and other filtering and purification methods. It removes things like chlorides, salts and other substances that can affect a water's taste. Every bottle of Naya Pakistan produced at one of our water purification centers. That's how you know you're getting pure water, perfect taste consistently every time you open an Naya Pakistan. Anytime, anywhere.