After selling our home we moved into a home that had no reverse osmosis. We decided to purchase a Berkey gravity filter. We were impressed with the quality of the filter and the pure water it produced. But I soon realized that we were spending 2 to 3 hours a day waiting for our water to filter. Being an engineer working in the water industry, I determined to devise a means to automate the process.
Over the course of the last year I developed and patented means of controlling the flow of water in the upper and lower chambers to eliminate water spilling and a combination of non electric sensors tubes and fittings that allow the filter to be connected to an external water source. As a family of 4 and with even with constant use, we never run out of water. It has made the use of the filter dramatically simpler.