1-12. SYSTEM TECHNICAL PRINCIPLES OF OPERATION - cont.
Storage Assemblies. Each storage assembly contains a 20K collapsible fabric tank, 4-inch gate
valve, tee and discharge hoses Water for filling the fabric tank is tapped off the main hose line
by opening the inlet gate valve. When the tank is full, the gate valve is closed. A second 4-inch
gate valve, supplied with the water tank, controls water flow from the water tank to the
Distribution Point. Each distribution point contains a 125 gpm pump, hypochlorination unit, 2-
inch gate valves, discharge hoses, 1 1/2inch distribution nozzles and elbow valves. Water for
operating the distribution point is received from the storage assembly.
The engine driven, self contained, 125 gpm centrifugal pump supplies water to the distribution
nozzles and valves through the 2-inch discharge hoses. For additional information on principles
of operation for the 125 gpm pump, refer to the applicable TM.
The Hypochlorination unit treats water being discharged from the distribution point with a
hypochlorite solution. The solution is automatically injected into the water supply based on the
water flow rate. The water supply must be tested and the hypochlorination unit adjusted to
provide the correct ratio of hypochlorite solution as determined by medical personnel. For
additional information on principles of operation for the hypochlorination unit, refer to the
Two 2-inch gate valves control water flow to each leg of the distribution point. Dispensing of
water to consumers is controlled by hand operated distribution nozzles and elbow valves. Nozzle
stands support dispensing equipment to prevent contamination.