Recently one of our licensed technicians was at your location to perform the service on your fire suppression system. During that inspection the following deficiency was found. Fire suppression system cylinders are due for hydro-test. A pressure test, rebuild and refill is required. DOT and the system manufacturer require that these system cylinders are tested every 12 years. Fire Suppression Repair (Both RG6G tanks) Main system is non compliant due to system cylinders need hydro testing. Both tanks are dated 2005 And are due for hydro every 12 years per nfpa. system will also need 2 vent plugs. - repair