Corrosion can be a costly and annoying concern in a building's potable water
The forms of corrosion that can occur include:
1) General Corrosion
2) Pitting Attack
3) Concentration Cell Corrosion
4) Dealloying
5) Erosion Corrosion
6) Galvanic Corrosion
These corrosion forms can be avoided by a number of techniques including materials selection, system design and chemical treatment of the water.
Coatings, sometimes in conjunction with cathodic protection, have been used to mitigate the corrosion of storage tanks in building systems, but are not addressed in this paper.