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 TM 55-1905-219-14-2
2-102. SEWAGE SYSTEM - NORMAL OPERATION (Cont).
d.
Pilot House.
(1)
When the contents of the holding tank reaches 90% of the full mark, the following occurs:
(a)
Place the alarm switchboard in operation. (Refer to paragraph 2-110).
(b)
Supervisory targets:
gray - normal
yellow - off
(c)
Alarm targets:
gray - normal
red - trouble at sewage tank- ALARM BELL WILL RING.
2-453
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