ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
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DESCRIPTION AND THEORY OF OPERATION
THEORY OF OPERATION
EXTENDED PRODUCT WATER DISTRIBUTION SYSTEM (A-TWPS ONLY)
The extended product water distribution system provides an additional 9000 gallons of product water
storage with the use of three additional 3000-gallon Storage Tanks T-5, T-6 and T-7 (see Figure 25). The
tanks are connected together using 2-in. diameter, 5-ft. long, blue-banded hoses. Adapter A-07 is
installed in line between two of the three tanks. A 2-in. diameter, 5-ft., blue-banded suction hose
connects from Adaptor A-07 to Diesel Engine-Driven Pump P-8. Product water is delivered to the inlet of
one of the tanks through the 1-in. diameter suction hoses that are disconnected from the standard
distribution system storage tank and connected to an extended distribution system storage tank by
Adaptor A-15. Pump P-8 draws the product water from the storage tank outlets and discharges it through
Adaptor A-08 and two 2-in. diameter, 65-ft. long discharge hoses to two Distribution Nozzles V-523C and
V-523D. The extended product water distribution system, combined with the standard product water
distribution system, provides up to 250 gpm total distribution capacity through the four distribution
nozzles.
NUCLEAR, BIOLOGICAL, CHEMICAL (NBC) SYSTEM
The NBC system is deployed as a final product water treatment step when the water source is
contaminated with nuclear, biological, or chemical warfare agents (see Figure 26). The RO system will
remove most, if not all, of the NBC agent material. The NBC system provides final removal and added
assurance that all NBC agents have been removed from the water. The system consists of an NBC filter
tank and media consisting of ion exchange resin and carbon. When used, it is removed from the TWPS
skid and deployed near the distribution tanks. The media is loaded after the filter tank is in place. Product
water is directed to the top of the filter. The water flows down through the media, out the bottom of the
filter, and to the distribution tanks. The calcium hypochlorite is injected in the product water after it
discharges from the NBC filter outlet. The injector is located in the filter outlet pipe. After one hundred
hours of water production, the resin and carbon will be exhausted. The tank is disconnected and left for
later disposal. A new tank, resin and carbon are used to continue the mission.
NBC HYPOCHLORITE TUBE
STORAGE TANK T-3
TWPS
ION EXCHANGE RESIN
NBC FILTER TANK
INJECTOR
NBC OUTLET
CARBON
Figure 26. NBC System.
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