What is the testing requirement for a semi-auto dry standpipe without a backflow preventer?

The testing requirement for a semi-automatic dry standpipe system without a backflow preventer is annually. This is in alignment with industry standards and codes, which dictate that dry standpipe systems must undergo a thorough inspection and testing schedule to ensure they function properly and are ready for use in emergencies.

An annual testing requirement helps in identifying any potential issues, such as leaks, corrosion, or other structural deficiencies that may compromise the system's operation. Regular inspections are essential, but since this system lacks a backflow preventer, it does not require more frequent testing in this context. Monthly or quarterly tests might be more appropriate for systems where more frequent maintenance is justified due to their complexity or critical nature; however, for a semi-automatic dry standpipe system without a backflow preventer, annual testing is sufficient to ensure compliance with safety regulations and system reliability.