. >> what you see on my left, this is microfiltration unit. e five units here and the purpose of this microfiltration unit is to remove all of those you can see with your eye. ba basically clean the water before it goes here. the purpose of this is because it's so small, it removes all and produces a high quality water that we want. we have the uv there, and caught this is our uv disinfection, the microfiltration are more or less give you the quality of the water. the uv disinfection you can add the barrier, they are doing well. the uv is actually a redundant process. all right? but it's on all the time, even when they are doing -- so after this uv, what we do is we give it to the customer. and we give it to the customer and produce high quality water, we call it newater. >> harry built the demo plant close to a sewage treatment center. he took water treated at the plant and processed it. eventually leading to the production of water pure enough to drink. it is now known as newater he still fondly remembers the time he gave a tour of the facili