Determining water hardness is crucial for various domestic and industrial applications. It measures the concentration of dissolved calcium and magnesium ions in water, which can impact its quality and suitability for specific purposes.
Hard water can cause scale buildup in pipes and appliances, reducing their efficiency and lifespan. It can also affect the taste and appearance of water, making it less desirable for drinking or cooking. Conversely, soft water is generally preferred for household use as it extends the life of appliances, improves lathering of soaps and detergents, and leaves surfaces feeling smoother after washing.