Sediment formation in boilers

Boiler feed water should be free of hardness. Sometimes, due to the short or improper operation of the hardness device or the failure to regenerate the resins in time, some hardness enters the boiler feed water. Increasing the water temperature in the boiler reduces the solubility of water solutes. The water near the hot surfaces becomes saturated and the conditions for deposition of less soluble substances are provided and eventually sediment is formed.