ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
0027 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR INSTRUCTIONS
OPERATION UNDER UNUSUAL CONDITIONS
Chemical/Biological Decontamination
WARNING
Chemical hazard. When handling the chemicals and the decontamination solution
mixture, wear the protective goggles, face mask, apron and gloves. Always keep
one or two chemical buckets filled with product water and ready to use. Direct
contact with the decontamination solution will cause skin burns and may cause
serious eye damage.
Hazardous chemical dust and/or fumes. Wear the protective face shield, chemical
gloves, and dust mask when handling calcium hypochlorite. Avoid inhaling
chemical dust or fumes. Hypochlorite will give off chlorine vapor, which will burn
your nose, throat and lungs if breathed directly. Keep your head away from the top
of the bucket while filling. Inhalation of calcium hypochlorite dust may cause
severe chemical burns. Direct contact with the eyes may cause severe eye
damage.
1. Shutdown to standby.
2. Decontaminate the MF System as follows:
stated below.
b. After adding the AC-350 caustic, slowly add 15 lbs. of calcium hypochlorite.
c. Extend the soak to 4-hours.
d. Complete following the normal cleaning procedure.
e. Set the MF feed tank aside for disposal.
f. Decontaminate MF Feed Strainer S-2 as follows:
1) During the extended soak, vent the MF strainer (V-110 and V-109) and then
remove the strainer and place it in the RO feed tank.
2) Leave the strainer in the tank until after the rinsing is complete. When filling the
tank, be sure to rinse the strainer.
3) Remove the strainer from the tank, rinse and remove any remaining dirt.
g. Decontaminate the MF Feed Strainer S-2 body as follows:
1) After removing the strainer, disconnect the raw water hose from the TWPS raw
water inlet and install the cap on the inlet.
2) Using the raw water pump priming pitcher, collect decontamination solution
through the RO Feed Tank Auxiliary Drain Valve V-210 and drain tube (see
Table 2 and Figure 5 for valve location).
3) Pour the solution into the strainer body. Repeat until the strainer body is full.
4) At the end of the soak, drain the filter into a chemical bucket and pour back into
the RO feed tank.
3. Decontaminate the RO System as follows:
below.
b. After adding the detergent, add 4 gallons of caustic following the procedure described for
MF Caustic Detergent Cleaning in WP 0021.
0027 00-18
