http://www.ycwatermakers.com/m....ulti-meida-water-fil Multi-meida Water Filter Hardness removal equipment The total amount of calcium and magnesium ions in water is called the total hardness of water. It is easy to produce insoluble sediment (scale) in daily life and industrial water use, which will bring a lot of inconvenience to life and production. The cooling water with high hardness will make the heat exchanger form scale, seriously hinder the flow channel, greatly reduce the heat exchange effect, produce perforated corrosion and damage equipment; As boiler water, it will scale on the heating surface of boiler, but the th