Semi Annual Sprinkler Inspection Deficiency: System is due for 5 year internal inspection and gauge replacement FDC hydro test is due 3 year pressure test is due 5 year internal inspection FDC hydro test 3 year pressure test 2 water gauges 1 air gauge Deficiency: System is due for 5 year internal inspection and gauge replacement FDC hydro test is due 3 year pressure test is due 5 year internal inspection FDC hydro test 3 year pressure test 2 water gauges 1 air gauge