System for and method of regulating calcium hardness for a body of water

摘要

A method of regulating water hardness for an aquatic recreational body of water by the steps of determining the water hardness, preferably determining the calcium ion content, and reducing the water hardness, preferably removing the calcium ions, based on a function of the determined water hardness and a target water hardness range using electrochemically assisted ion exchange technique. A system for regulating water hardness for an aquatic recreational body of water comprising a water hardness sensor, a water hardness reduction unit, and a control circuit in communication with the sensor and the water hardness reduction unit. Preferably the water hardness reduction unit uses an electrochemically assisted ion exchange process.