TM 10-4610-241-10
TO 40W4-13-41
2-7. ROWPU ASSEMBLY AND PREPARATION FOR USE - cont.
WARNING
Use one pail for chlorine use only. DO NOT use for other chemicals.
(6)
Mix chlorine solution as follows:
(a)
Pour 3 gallons of brine (if available) or raw water 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.
NOTE
Mixing calcium hypochlorite with water produces a chlorine solution. It is normal to see white
particles in the solution.
(e)
Stir pail with wood paddle for 1 minute.
(f)
Pour chlorine solution into chemical feed can marked CHLORINE.
(7)
Mix sodium hexametaphosphate (sodium hex) solution as follows:
(a)
Pour 0.1 pounds (45 grams) of sodium hex into SODIUM HEX measure.
(b)
Pour sodium hex into pail marked SODIUM HEX.
(c)
Add brine (if available) or raw water to pail marked SODIUM HEX. Fill to 3-gallon mark.
(d)
Stir pail with wood paddle for 1 minute.
(e)
Pour solution into chemical feed can marked SODIUM HEX.
(8)
Check chemical feed can solution levels by loosening the cap on the indicator, and then gently letting go.
Indicators should remain raised approximately 1/4 the length of the indicator (1/4 full). Refer to figure 2-
41.
(9)
Make sure lids are installed and vents are open.
2-72
