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
CAUTION
Failure to add sodium bisulfite to the chlorinated product water that is used for
cleaning will result in MF membrane failure.
a. Remove the TWPS inlet cap and connect the 3-in. inlet hose to the TWPS inlet.
b. Add product water to the MF feed tank until the tank is full.
c. Add one cap of sodium bisulfite to the MF feed tank while filling to neutralize the chlorine
in the product water.
d. Set the CLEAN switch to RINSE.
1) This turns on the MF feed pump and initiates an automatic rinse cycle using
product water from the MF feed tank.
2) The MF feed pump stops at the end of the cycle.
3) The CLEAN light flashes during the cycle and turns off at the end of the cycle.
4) The cycle ends in STANDBY.
9. Flush the RO feed tank with product water as follows (see Figure 10 for valve location):
a. Open Main RO Feed Tank Drain Valve V-412 to drain any remaining caustic detergent
cleaning solution from the tank to the waste out hose.
b. Flush the tank with water using the distribution system auxiliary hose to remove residual
cleaning solution.
c. While flushing the RO feed tank:
1) Place the hose from RO Feed Pump Drain Valve V-211 into a bucket. Open the
valve just long enough to flush the pump, then close the valve.
2) Empty the bucket into the 1500-gallon cleaning waste tank.
RO FEED TANK
MAIN DRAIN VALVE V-412
RO FEED PUMP DRAIN VALVE V-211
Figure 10. Valves for Flushing RO Feed Tank.
d. After flushing the RO tank, allow the tank to drain then close RO Tank Drain Valve V-412.
10. End the MF Caustic Detergent Cleaning as follows (see Figure 5):
a. Set MF Clean switch to OFF.
WARNING
Caustic chemical. Wear a protective face shield, chemical gloves, and a chemical
apron when handling the cleaning and drain hoses. Contact with caustic will result
in severe chemical burns. Keep water ready when handling. Failure to observe
this warning may result in severe irritation of the nose, throat, eyes, and skin.
0021 00-16
