Quantcast DRAINING AND FLUSHING FOAM TANKS. (Cont)

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TM 9-2320-279-10-3
Operation Under Usual Conditions (Cont)
2-132. DRAINING AND FLUSHING FOAM TANKS (CONT).
NOTE
Local draining laws must be followed when draining and
flushing foam and water from foam tanks.
a. Put FOAM TANK DRAIN valve handle (4) in open position and drain
water from foam tank.
b. Repeat steps h. through j. until foam is clean.
c. Put FOAM TANK DRAIN valve handle (4) in closed position.
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5
d. Put foam METERING VALVE (5) in OPEN position.
NOTE
Water must be added into foam tank that is being flushed.
FOAM TYPE SELECTOR switch must be switched to
the foam tank that is being flushed.
e. Run foam system with water instead of foam (para 2-124).
f.
Discharge water until foam tank is empty.
g. All debris must be removed from foam tanks after flushing is complete.
h. Close expansion dome hatch (3).
i. Repeat steps a. through q. to drain and flush foam tank A.
j.
Flush foam system (para 2-128).
2-204



 


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