7- East wall: Perform a 5-year internal assessment of system piping that is due for systems #1, #3, #5, #7, #9, & #11 . If an obstruction is present, this can render the sprinkler system not properly operate in the case of a fire. The customer will provide the lift. NFPA 25 (14.2.1.1) An assessment of the internal condition of piping shall be conducted at a minimum of every 5 years or in accordance with 14.2.1.2 to inspect for the presence of foreign organic and inorganic material. 1- East wall: Perform a 5-year internal inspection of the system check valves for all 12 systems. NFPA 25 (13.4.1.2) Alarm valves and their associated strainers, filters, and restrictions orifices shall be inspected internally every 5 years unless tests indicate a greater frequency is necessary. 1- East wall: INFORMATIONAL PURPOSE ONLY: The 5-year Hydrostatic test of the FDC is due. Although, due to the inaccessibility of the check, the requirement of permits, and specialty equipment, the testing can no