In Part C of this lesson, you will receive information on the supervision of
TWDS installation. You will learn how to supervise soldiers in all aspects
of this activity.
In Part D of this lesson, you will receive information on supervision of
disassembly and packing the TWDS. You will learn how to supervise soldiers
in all aspects of this activity.
PART A - TWDS DESCRIPTION AND CAPABILITY
1. In areas where DS water systems are not capable of providing enough
water supply, GS units provide this capability.
Purified water is
introduced into the water distribution system from purification points
located onshore and offshore.
Water enters the system through the base
terminal storage facility, where it is distributed to other terminals within
the COMMZ and forwarded into the corps rear area by the TWDS.
a. The TWDS is intended for operation by a water supply company or
tactical water distribution team.
The mission of the tactical water
distribution team is to lay, operate, and retrieve the TWDS.
These teams
normally augment a water supply company to supplement that unit's bulk water
distribution capability in a GS role.
b. The system consists of quick-laying fabric water hose lines, pumps,
and fittings.
The system can pump up to 600,000 gallons per day.
The
system is packaged with all items of equipment needed to lay 10 miles of
hose line.
The TWDS transports potable water across level terrain for
distances up to 10 miles.
Water may be stored in two 20,000-gallon
collapsible fabric tanks, chlorinated and distributed to users, or used to
supply PWS/DS.
2. The pumps can be operated in one of three modes: manual, electric
manual, and electric automatic.
a. In the manual mode, engine speed is controlled by manual movement of
the throttle knob. Engine speed can be adjusted from a minimum of 1,000 RPM
to a maximum of 2,500 RPM.
b. In the electric manual mode, engine speed can be adjusted across the
same range by manual movement of the speed control on the pressure
regulator.
c. In the electric automatic mode, engine speed is automatically
adjusted by an electric speed control governor that is actuated by changes
in water pressure at the pump suction port.
QM4912
3-2
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