TM 55-1930-209-14&P-4
Table 4-2. Preventive Maintenance Checks and Services for Chlorination System (Continued)
B - Before
D - Daily
Q - Quarterly
D - During
W - Weekly
S - Semiannually
A - After
M - Monthly
A - Annually
Interval
Procedures
Item
Check For And Have
Equipment
Item
To Be
Repaired Or Adjusted
Is Not Ready/
No.
B
D
A
D
W
M
Q
S
A
Inspected
As Necessary
Available If
(g)
Turn cooling water flowmeter
OFF by closing valve at bottom
of flowmeter.
(h)
Turn makeup water flowmeter
OFF by closing valve at bottom
of flowmeter.
(i)
Turn function switch on control
cabinet to FLUSH.
(j)
Allow seawater to flow thru
chlorination unit for about 5 min-
utes, then turn function switch on
control cabinet to OFF/RESET.
(k)
Open chlorination valve CU9 to
allow chlorination unit to drain. If
sump appears to be overfilling,
partially close valve CU9 to
reduce drain flow to sump.
(I)
After chlorination unit has
drained, close valves CU8 and
CU9 to position C (OFF).
d.
Drain and clean sludge buildup from brine
tank and holding tank.
7
Acid Tank
WARNINGS
Wear rubber gloves, safety goggles or
faceshield, and chemical dust mask when
working with add crystals and acid solution.
Always add acid to water. Do not add water
to acid. If any acid crystals or solution
splash on skin, flush skin with water imme-
diately. Immediately flush eye at eyewash
station If acid crystals or solution splash In
eyes.
a.
Flush acid tank with sulphuric acid as fo-
lows:
C-7
