Traditionally, closed system treatment programs have involved adding corrosion inhibitor and
periodically testing for the residual. To be effective, these treatment programs must also
include cleaning. This paper will discuss the various aspects that should be evaluated as part of a closed system treatment program.
Ccase histories of four fire protection systems where corrosion resulted in premature discharge/leakage causing significant property damage or facilities downtime. Tuberculation of galvanized piping. Two cases of dealloying (dezincification) corrosion of brass sprinkler heads. Microbiologically induced corrosion (MIC) corrosion.