The hardness of water is due to the presence of soluble bicarbonates, chlorides and sulfates of calcium and magnesium. Water which does not give lather with soap is hard water.
The hardness of water is harmful to the boilers as the deposition of salts occurs, which reduces the efficiency of the boiler.
The application of hardness test kit is that it enables you to evaluate a material's properties
and helps you to determine whether a material or material treatment is suitable for the purpose you require.
