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 TM 55-1905-219-14-2
DRAINAGE SYSTEM
PREVENT BACKFLOODING
1.
DO NOT OPEN ACTUATING WATER VALVE UNTIL OVERBOARD VALVE IS OPEN.
2.
IF VACUUM DOES NOT DEVELOP IN SUCTION PIPING, CLOSE ACTUATING WATER VALVE
IMMEDIATELY.
3.
WHEN SECURING EDUCTORS, CLOSE SUCTION VALVE AND ACTUATING WATER VALVE BEFORE
CLOSING OVERBOARD DISCHARGE VALVE.
2-685/(2-686 Blank)
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