TM 3-4230-209-10
3
a. Open the tank drain valve (3) on the tank unit by turning valve handle approxi-
mately five full turns.
b. Open the valve (4) on the gun assembly and begin spraying foam-water mix-
ture. The mixture should be thick and fluffy (not thin and watery). If necessary,
turn tank drain valve (3) handle toward the closed position in one-fourth turn
increments until the foam water mixture reaches proper consistency.
c. After the spraying mission is complete stop pump unit. Clean and store the
apparatus according to applicable procedure listed in table 2-4.
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