TM 3-4230-209-10
2-23. MIXING WATER AND LIQUID CHEMICALS USING THE PRIME-
DETERGENT TANK.
Concentrated liquids which dissolve readily in water maybe mixed with water in the
pump cavity by using the prime-detergent tank. The chemical to be mixed with water is
placed in the prime-detergent tank after the pump unit has been primed. It is metered into
the pump cavity using VALVE NO. 4. The water and chemical mixture is then discharged
through the discharge hoses. Water should not be discharged to the tank unit during
metering of liquid chemicals. The procedures for using two of the more common concen-
trated liquids, liquid detergent (item 8, app D) and fire extinguishing foam forming liquid
(item 12, app D) for petroleum fires are given below.
a. Liquid Detergent (item 8, app D).
a. Heat the water in the tank to approximately 90F (para 2-17).
CAUTION
Hot water is present in the heater and will drain when blender hose is
disconnected.
b. Disconnect the water heater. Cap both discharge pipes (1) on the connector
panel immediately. Do not allow the pump to drain.
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