Water purification is often required in offices, homes, businesses and industry where it is used for cooking, drinking, or producing goods and or services. The most common methods are is usually water filtration and water softening. Of these two, water softening is commonly used in applications where hard water is involved. In this process, calcium and magnesium ions in water are physically removed and replaced with sodium ions in a process called ion exchange. Water softening is performed with various types of valves and vessels depending on the application and the volume of water to be treated.
As said before, a water softener is used to segregate hard minerals from hard water in some amounts. It removes minerals like magnesium and calcium from the water (iron and manganese secondarily but softening may not be the best choice for these metals). However, at times it may not work as expected. How to know if they are working or not? Here are the signs that will tell you about the diminishing efficiency of your water softener.