07.07 How is a day tank different for mission critical?

Mission Critical day tanks provide redundant functional elements for all of the potential failure mechanisms noted above. This type of design includes: (a) dual inlet solenoid or actuated valves, (b) high level sensor redundant to fill stop sensor, (c) low level sensor redundant to fill start sensor, (d) BMS monitoring of controller, (e) manual bypass of functional elements, (f) duplex pumping systems, (g) dual suction pipes from bulk tank to duplex suction pumps, (h) dual bulk storage tanks with auto-switch on low level.