TM 10-4320-303-13
1.12 LIST OF ABBREVIATIONS.
All abbreviations, acronyms, signs, and symbols used in this manual and not listed in MIL-STD-12 are listed in
the Glossary located in the back of the manual.
1.13 GLOSSARY.
All terms used in this manual that are not defined in the text or listed in the Army Dictionary (AR 310-25) are
defined in the glossary located in the back of the manual.
SECTION II. EQUIPMENT DESCRIPTION
1.14 EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES.
1.14.1 Characteristics. The TWDS consists of five or six pumping stations, a 10-mile hoseline segment, two
storage assemblies, and two distribution points. The number of pumping stations is dependent on the terrain
and distance over which the water must be transported. Smooth terrain requires five pumping stations with the
sixth pumping station used as a spare. Rough terrain requires six pumping stations. Each pumping station
consists of a 600 gallons per minute (gpm) pumping assembly, hose assemblies, 6 inch butterfly valves, check
valve, and coupling clamps. One of three different 600 GPM pumping assemblies may be supplied with the
TWDS, reference paragraph 1.16. Refer to applicable technical manual for a description of 600 GPM pumping
assembly characteristics. The 10-mile hoseline segment is constructed of 6 inch by 500 foot hose assemblies.
At intervals of every 1,000 feet a swivel joint is installed to prevent hoseline damage or chinking during
hoseline packing. A pressure-reducing valve assembly can be installed to reduce water pressure between two
pumping stations. The storage assemblies store water, tapped from the main TWDS hose line, which can be
dispensed at the distribution points or pumped further down line as required. The storage assembly is a 20,000
gallon pillow tank. For a description of the 20,000 gallon pillow tank, reference TM 5-5430-226-12. Each
distribution point consists of a 125 GPM pumping assembly, a hypochlorination unit, a network of hoses and 2
inch gate valves, and three types of water dispensing equipment. Refer to applicable technical manual for a
description of the characteristics of the 125 GPM pumping assembly. One of three different hypochlorination
units may be supplied with the TWDS, reference paragraph 1.16. Refer to applicable technical manuals for a
description of the characteristics of the model 1955-3 and model A-506131 hypochlorination units. The model
1955-1 hypochlorination unit can chlorinate water at a rate of up to 100 gpm. A 2 inch hose network and 2 inch
gate valves direct water flow from the hypochlorination unit to the manual dispersing stations. Chlorinated
water can be dispensed from a hand held nozzle, an elbow valve, or a 36 gallon water storage bag.
1.14.2 Capabilities and Features.
Can transport water at 600 GPM across level terrain.
Can transport 720,000 gallons of water within a 24 hour period.
Can be deployed and operational within 48 hours.
1.15 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS.
Figures 1-2 through 1-9 illustrate the major components of the TWDS. Tables 1-2 through 1-9 list the major
components and provide a description of each major component.
1-3
