There are many kinds of corrosion that can affect your system. Any type of corrosion can provide a foothold for Microbiologically Influenced Corrosion
Oxygen Cell Corrosion
Most common type of corrosion observed in nature, where metal reacts with oxygen in the air to form the metal’s oxide – commonly known as rust.
Corrosion of metal by chemical process other than oxidation. Commonly, acid or acid gases.
Corrosion of a metal associated with an electric current through an electrolyte. Usually occurs when two different metals are used together.
Microbiologically Influenced Corrosion
Corrosion of metal by bacterium interacting with and accelerating the above types of corrosion.