TM 10-4610-240-10
TM 08580C-10/1
T.O. 40W4-13-21
WARNING
Mark one pail for chlorine use only. DO NOT use for other chemicals.
(21) Mix chlorine solution as follows:
(a) Mark one pail for use with chlorine. Pour 3 gallons of brine into unmarked pail.
(b) Fill CALCIUM HYPOCHLORITE measure with 0.2 pounds (91 grams) of calcium hypochlorite.
(c) Pour calcium hypochlorite into pail marked CHLORINE.
(d) Pour brine (if available) or raw water from unmarked pail into CHLORINE pail.
(e) Stir with wooden paddle for 1 minute.
NOTE
Mixing calcium hypochlorite with water produces a chlorine solution. It is normal to see white particles in
the solution.
(f) Pour solution into 5 gallon chemical container marked CHLORINE.
CAUTION
Make sure all hose connections are secure on chemical pump, valves and containers.
(22) Mix sodium hexametaphosphate (sodium hex) as follows:
(a) Pour 0.1 pounds (45 grams) of sodium hex into SODIUM HEX measure.
(b) Mark one pail for use with sodium hex solution.
(c) Put sodium hex into pail marked SODIUM HEX.
(d) Add brine (if available) or raw water to pail marked SODIUM HEX. Fill to the 3-gallon mark.
(e) Stir with wooden paddle for 1 minute.
(f) Pour solution into 5 gallon chemical container marked SODIUM HEX.
(23) Mix citric acid as follows:
NOTE
Perform this step only if ROWPU will be operated 20 or more hours before changing sites. Otherwise,
proceed to step (24).
(a) Mark one pail for use with citric acid.
(b) Pour three quarter pounds (340 grams) of citric acid into pail marked CITRIC ACID.
(c) Add brine (if available) or raw water to pail marked CITRIC ACID. Fill to the 3-gallon mark.
(d) Stir with wooden paddle for I minute.
(e) Pour solution into 5 gallon container marked CITRIC ACID.
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