The magnesium bar is an essential element in the life of the Solar Water Heater.
Corrosion is a process by which steel changes its chemical structure by: oxidation, electrolysis or chemicals. Especially in hard water areas, steel is easily be corroded and finally lead to leakage problem. Magnesium bar can soften water, resist chemical corrosion to solar systems, especially for the areas with poor quality water supply. Therefore, magnesium bar can better protect inner tank from hard water corrosion and longer your solar water heater duration. However, usually magnesium bar needs to be replaced per year.