ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
0024 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR INSTRUCTIONS
MICRO-FILTRATION SYSTEM CLEANING WITH REVERSE OSMOSIS
SYSTEM ACID CLEANING OPERATION UNDER USUAL CONDITIONS
2. Backwash the MF as follows:
a. Backwash the MF in the MF CLEAN MODE.
1) When the compressor stops (if running), set the MF CLEAN MODE SWITCH to
BACKWASH.
2) When the Clean light flashes, start the MF feed pump.
3) Then push MF BACKWASH START.
a) The automatic backwash cycles but ends without the rewet step.
b) The backwash light flashes while the backwash is in progress. When
finished, the backwash light is off.
c) When the backwash is completed, the MF feed pump will stop.
4) Drain the MF feed tank.
a) Disconnect the MF feed pump suction hose from the MF feed tank. Pull
the pump back.
b) Lift the tank to drain it as completely as possible.
5) Reconnect the MF feed pump suction hose to the MF feed tank.
6) Fill the MF feed tank with product water from the product water distribution
system by connecting the end of the product distribution hose to raw water
Adaptor A-05 and opening V-107.
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. Promptly change contaminated clothing after accidental chemical exposure.
CAUTION
Failure to add sodium bisulfite to the chlorinated product water that is used for
cleaning will result in MF membrane failure.
NOTE
Open one of the 12 oz 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 when product water is required for cleaning.
7) Using the bottle of bisulfite, fill the bottle cap with bisulfite twice and empty it into
the MF feed tank while it is filling with product water. This neutralizes the
chlorine in the product water that will be used for the second backwash and the
MF rinse after MF acid cleaning.
b. Backwash the MF a second time but with product water as follows:
1) When the compressor stops, start the MF feed pump.
2) Immediately push MF BACKWASH START for a second backwash using product
water from the MF feed tank.
a) The automatic backwash cycles but ends without the rewet step.
b) The backwash light flashes while the backwash is in progress. When
finished, the light is off.
c) The MF feed pump stops when the backwash is completed.
0024 00-4
