ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
0026 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR INSTRUCTIONS
MICRO-FILTRATION SYSTEM PRESERVATION OPERATION UNDER
USUAL CONDITIONS
g. Remove the 3-in. hose from the TWPS inlet connection and cap the inlet connection.
h. Using the distribution system auxiliary fill hose, fill the RO feed tank to about 3 in. above
the bottom of the baffle plate.
i. Set the SYSTEM MODE SWITCH to RO CLEAN.
WARNING
Chemical dust. Wear a protective face shield, chemical gloves, and a dust mask
when handling sodium bisulfite. Avoid inhaling chemical dust or fumes. Failure to
observe this warning may result in mild irritation of the nose, throat, eyes, and
skin.
CAUTION
Failure to add sodium bisulfite to the chlorinated product water that is used for MF
preservation will result in MF membrane failure.
NOTE
If a bottle of bisulfite powder has not already been prepared, open one of the 12oz.
sodium bisulfite packets and pour it into the bottle provided in the BII. The
bisulfite powder will be used to neutralize the chlorine in the product water that is
used for preparing the MF preservation solution.
j.
Using the bottle of bisulfite, add one capful of sodium bisulfite to the RO feed tank while
filling the tank to neutralize the chlorine in the product water.
k. Reset the RO Feed Tank Low Alarm.
l. Start the RO feed pump. This circulates solution through the RO feed pump and back
into the RO feed tank through Clean Mixing Valve V-703 to provide mixing when caustic
is added to the water. Silence any alarms.
m. Place a bucket of product water in the operator station for rinsing.
5. Prepare the caustic preservation solution as follows:
WARNING
Caustic chemical. Wear a protective face shield, chemical gloves, and a chemical
apron when handling caustic solution. Contact with caustic will result in severe
chemical burns. Keep water ready when handling. Avoid inhaling chemical fumes.
If the caustic spills, immediately flush the area with water from the auxiliary hose.
Failure to observe this warning may result in severe irritation of the nose, throat,
and eyes. Contact with skin will result in severe chemical burns if not immediately
rinsed off.
a. Hook the RO feed tank cover open.
b. Take one AC-350 caustic container and remove the outer plastic bags.
c. Hold the container inside the RO feed tank and remove the cap. Rinse the cap in tank
and set aside.
d. Hold the container near the water (but not underwater) to avoid splashing and slowly
empty the container into the water.
e. When empty, rinse the container with water inside the tank (now it may be held under
water) then reinstall the cap.
0026 00-5
