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 TM 55-1925-273-10-1
OPERATOR'S MANUAL
INLAND AND COASTAL LARGE TUG (LT)
THEORY OF OPERATION
POTABLE WATER SYSTEM
GENERAL
The potable water system supplies cold and hot water to the galley, drinking fountains, showers, toilets, sinks, hot water
heaters (figure 1, item 1), and other areas throughout the LT. The potable water system also supplies potable water to
replenish the coolant in the engine cooling piping systems.
The potable water system consists of two potable water tanks (figure 2, item 1), two reverse osmosis water purification units
(figure 2, item 2), a proportioning bromine feeder (figure 2, item 3), two potable water pumps (figure 2, item 4) a hydropneumatic
tank (figure 2, item 5) with pressure switches, two potable hot water heaters and a hot potable water recirculating pump (figure 1,
item 2).
P
PW-42
PW-90
PW-82
T
T
PW-91
PW-81
PW-3
PW-22
PW-20
PW-43
PW-44
See
PW-79
PW-21
Figure
A
PW-40
1
Engine Room
PW-41
PW-39
PW-19
1
2
AMS 1
Figure 1. Potable Water System (AMS 1)
0028 00-1
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