This solution is surely the most economical on the water treatment market and incomparably cheaper than bottled water. If one considers the price of the Black Berkey purification elements, it represents a cost of 0.005 Chf per litre.
The heart of the system, the Black Berkey purification elements, have an impressive lifespan of several years. The casing is particularly robust and fully repairable.
The Berkey system is not a simple filter but a purifier capable of making water drinkable by drastically reducing the concentrations of bacteria, viruses, heavy metals and chemical contaminants.