Case StudiesCase 1 – Tube Failures in High Pressure Evaporator from Phosphate Gouging (Acid Phosphate Corrosion) Case 2 – Correction for Ammonia/Amine Effect on pH When Using Phosphate Treatment Case 3 – Corrosion and Stress Related Boiler Tube Failure Case Histories Case 4 – Effect of Installing New Makeup Spray Header