What are the levels of copper and silver being added to the water?
The criteria for copper and silver in water are as follows: The EPA standard for drinking water is 1.0 ppm (parts per million) maximum for copper and 50 ppb (parts per billion) maximum for silver. The system is programmed so that a water test showing 0.25 ppm to 0.35 ppm copper automatically provides the proper ratio of silver. This will produce drinking water quality in any water system treated. The system requires no chemicals in their function of controlling algae and bacteria.
