Section IV. OPERATION UNDER UNUSUAL CONDITIONS
a.Cold Weather. The hypochlorination unit is not designed to operate in temperatures below 32° F (0° C). If water
or chemical freezes, severe damage will occur. If air temperature nears 32° F, cover unit and move unit to a
warmer area to prevent freeze up. If the unit cannot be moved to a warmer area, drain and prepare it for storage
by following procedure in paragraph 2.9 (Preparation for Movement) to prevent damage.
b.Dusty or Sandy Conditions. Use existing shelter and windbreaks to keep sand and dirt from equipment during
refill of reservoir. Keep cover on reservoir. Be careful when mixing hypochlorite solution to prevent getting sand
or grit into solution. When equipment is not in use, install quick disconnect cap and plug on manifold assembly
and cover unit.
c.Extreme Heat. Operate hypochlorination unit and store chemicals in a shady area. If shady area is not available,
operate with cover installed.
Salt Air/Sea Spray. Clean and wash unit frequently with fresh water.
Wear protective gear when performing emergency decontamination. Failure to do so may lead to death.
a.General. The following emergency procedures can be performed until field NBC decontamination facilities are
available. Detailed decontamination procedures can be found in FM 3-3, FM 3-4, and FM 3-5.
Decontamination to be conducted by NBC decontamination team in the area.
Interim Decontamination Procedures.
(1) Continue operation of hypochlorination unit.
(2) Mark unit as externally contaminated for later decontamination.
(3) Keep lid on reservoir to prevent contamination of hypochlorite solution.
(4) Do not open camlocks or expose interior of unit to environment.
(5) If interior is exposed to environment, mark unit as contaminated internally.
(6) Emergency Hasty Decontamination: Mix a solution of 6 gallons treated water and approximately 5.5
pounds of calcium hypochlorite. Pour this solution over hypochlorination unit, thoroughly dousing all