ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
0021 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR INSTRUCTIONS
MICRO-FILTRATION SYSTEM CLEANING OPERATION UNDER
USUAL CONDITIONS
2. Put citric acid in the cleaning waste tank for neutralizing the cleaning solution when the solution is
flushed into the tank as follows:
WARNING
Acid chemical. Wear a protective face shield, chemical gloves, and a chemical
apron when handling citric acid. Avoid inhaling chemical fumes. If acid spills,
immediately flush the area with water from the auxiliary hose. Failure to observe
this warning may result in mild irritation of the nose, throat, eyes, and skin.
Promptly change contaminated clothing after accidental chemical exposure.
a. Make sure a bucket of water is placed near the cleaning waste tank to rinse any area of
skin or clothing that comes in contact with citric acid.
b. Open the cleaning waste tank zipper.
c. Open an extra AC-210 Citric Acid bucket. Pour all of the contents into the cleaning waste
tank. If using a different source of citric acid, pour in 20 lbs of citric acid. (After all of the
cleaning waste has been discharged into the tank, the pH will be approximately 9).
d. Close the cleaning waste tank zipper.
e. Rinse the pitcher and chemical gloves in the bucket of water before removing the gloves.
3. Shutdown the TWPS to the Standby condition as follows (see Figure 2 for valve location):
a. Perform a Standby Shutdown Without Draining Down as described by WP 0017,
Standby or Short Term Shutdown.
b. Do not shut off the TQG and leave the air compressor on.
c. Stop the raw water pumps when the MF feed tank is 1/2 to 3/4 full.
WARNING
Do not open Main RO Feed Tank Drain Valve V-412. Failure to observe this
warning will result in high-pressure backwash air and water discharging back into
the tank when the MF is backwashed.
d. Open RO Feed Tank Auxiliary Drain Valve V-210 located at the operating station end of
the RO Feed Tank.
e. Open RO Feed Pump Drain Valve V-211.
RO FEED TANK MAIN
DRAIN VALVE V-412
RO FEED TANK AUXILIARY
DRAIN VALVE V-210
RO FEED PUMP DRAIN VALVE V-211
Figure 2. Valves for Shutdown to Standby for MF Acid Cleaning.
0021 00-3
