The zazen Silver Stones naturally preserve the freshness of the water in the zazen bottom tank as silver is a natural anti-bacterial agent. This, by design in the zazen Alkaline Water System, keeps the lower tank clean and maintenance free – you only need to clean the bottom tank once a year! And more importantly, you have fresh beautiful tasting water ready to drink all day, everyday!
In fact, you can go away on holidays for a month or even longer, and there is no need to empty your zazen system. When you return, the water in the system is fine to drink! This is one of the ways that makes the zazen Alkaline Water system unique, and superior, to other water systems that require regular maintenance.