DRAFT
TM 5-4210-249-13&P-1
0040
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TFFT4476
3.
Open expansion dome hatch (3).
4.
Put FOAM TANK DRAIN valve handle (4) in open position and completely drain foam into containers.
5.
Put FOAM TANK DRAIN valve handle (4) in closed position.
6.
Properly label the sealed containers when foam is completely drained from foam tank (5).
7.
Remove fill tower screen from foam tank (5).
NOTE
Defoaming agent can be used in assisting to clean foam tanks.
Defoaming agent and water must be added into foam tank that is being flushed.
8.
Add defoaming agent into foam tank (5).
9.
Fill foam tank (5) with warm water.
END OF TASK
FLUSHING FOAM TANKS
TFFT00331P
NOTE
Local draining laws must be followed when draining and flushing foam and water from
foam tanks.
1.
Put FOAM TANK DRAIN valve handle (4) in open position and drain water from foam tank (5).
2.
Repeat Steps (8) through (10) until foam is clean.
3.
Put FOAM TANK DRAIN valve handle (4) in closed position.
0040-8
