Regular maintenance includes visual inspections, testing, and servicing by licensed professionals. Quarterly inspections involve checking alarm valves, control valves, gauges, and sprinkler heads for any signs of damage or obstruction. An annual inspection involves a more comprehensive assessment of the entire system's performance. Additionally, a five-year inspection may include flow tests, internal pipe examinations, and other specialized checks. Keeping accurate records of maintenance activities is essential for compliance with local fire codes and to demonstrate the system's reliability and safety.