What percentage of represented sprinklers must be replaced when one sprinkler fails testing?

When it comes to the maintenance and testing of sprinkler systems, the standard procedure dictates that the entire represented sample of sprinklers must be replaced if just one sprinkler fails during testing. This requirement stems from the principle of ensuring that the system remains reliable and effective in providing fire protection.

The rationale behind replacing all represented sprinklers is that a failure in any single unit could indicate potential systemic issues. The fire protection system’s integrity relies on the consistent performance of all components; therefore, replacing only the failed unit would not guarantee that the remaining units are also in proper working condition.

This approach underscores the importance of thoroughness in fire safety measures, emphasizing that even one failing component can compromise the overall effectiveness of the entire system. Thus, when one sprinkler fails testing, replacing 100% of the represented sprinklers ensures that the integrity and reliability of the sprinkler system are maintained.