| 摘要 |
A method and apparatus for conditioning water, for example to soften hard water, comprises generating ions by applying a DC current to first and second metallic components which are exposed to the flow of water, employing a flow meter to measure the flow rate of water, and varying the level of the DC current as a function of the flow rate of water thereby to maintain substantially constant the concentration of generated ions in the water over at least a part of the range of the variable flow rate of water. |
