TM 10-4510-209-13&P
OPERATOR'S, UNIT, AND DIRECT SUPPORT MAINTENANCE
CONTAINERIZED LATRINE (CL) & CONTAINERIZED LATRINE SYSTEM (CLS)
THEORY OF OPERATION
GENERAL
The CL and CLS are designed for operation in temperature zones above 32 F (0 C). To operate the CL
in temperatures below 32 F, refer to Force Provider TM 10-5419-206-13 for Modification System Cold
Weather procedures. To operate the CLS in temperatures below 32 F, cold weather components may be
used as described in WP 0011 00. Both models can be operated on a continuous basis, provided the
water supply and blackwater discharge can be sustained on the same basis. The latrine operation
consists of seven functional systems:
Modified general cargo container
Water Heater System
Power distribution system
Water Pumping System
Fresh-water system
Waste Tank Ventilation System
Blackwater system
Modified General Cargo Container
Both latrine facilities are housed in a cargo container (1) modified to accommodate the electrically
operated, hot/cold-water service latrine facility. Main access to the latrine facility is through the cargo
doors (2) and then the main entrance (3). The latrine facility houses two sinks (4), one urinal trough (5), six
toilets (6), a water heater (7), utility connectors (fresh water, blackwater, and electrical) and a circuit
breaker panel. An ECU and an exhaust fan allow climate control as needed. The latrine is illuminated
with two double fluorescent light assemblies and an exterior light.
Power Distribution System
Both models operate on 60A, 208VAC, 3-phase power. The CL is part of the Force Provider power
distribution system. The CLS requires a power source, either commercial or generator power system of
10kw or greater. A 60A cable, connects to the external electrical panel, which in turn powers the circuit
breaker panel. The circuit breaker panel provides power to the water heater, the sump pump, the ECU,
the exhaust fans, overhead light, an exterior light, and a 110VAC convenience outlet. The CLS circuit
breaker panel also provides power to an internal water pump, and three exterior GFCI outlets used for the
Fresh Water System
Freshwater for the sinks, spigot, urinal, and toilets (through connection to the service entry panel inside
the latrine facility) is provided from a main supply hookup. The CLS uses either a municipal system or a
3000-gallon water tank. A recirculation hose is used in cold weather conditions as part of the cold weather
kit as described in WP 0011 00. The CL is connected to the Force Provider water distribution system (see
TM 10-5419-206-13 for Force Provider configuration). A reduced pressure backflow prevention device is
installed on the end-wall of the container in stall number six. The backflow preventer is installed as part of
the permanent plumbing. Its purpose is to prevent contamination of the fresh water supply by the black
and gray water associated with the CL/CLS.
A 6-gallon water heater (7) heats the fresh-water and distributes the heated water to the sinks.
Blackwater System
Blackwater from the waste tanks (8) and (9) is either gravity fed through a hose that is connected to the 4-
inch valve (10) connected to the blackwater access panel (11), and then to a sewer or the blackwater is
emptied from the tanks and taken to a wastewater collection facility (via the blackwater access panel (11)
and 4-inch valve, if fitted (10)).
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