Although the world’s infrastructure has developed a lot during the past decades, still thousands of kilometers of water and sewer pipes needing rehabilitation due to corrosion. These problems can be radically reduced, if not eliminated, by the cautions selection of materials resistant to corrosion, or the inclusion of corrosion protection systems into pipeline designs. Unfortunately, in hopes of cost saving, agencies will often forego the necessary corrosion protection, only to learn a few years later of the consequences. Corrosion is not a reversible process.