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
RO FEED TANK
MAIN DRAIN VALVE V-412
RO FEED PUMP DRAIN VALVE V-211
Figure 8. Valves for Flushing the RO Feed Tank.
MF Caustic Detergent Cleaning
The MF caustic detergent cleaning procedure is to be performed as a continuation of the MF acid
cleaning procedure. Perform the MF caustic detergent cleaning as follows:
1. Prepare water for MF caustic detergent cleaning as follows:
a. If using the cleaning waste tank, close valves V-705 and V-706 on Adaptors A-12 and A-
16 that are connected together on the cleaning waste tank (see Figure 5 for valve
location).
b. Make sure the A-16 adaptor valve V-706 on the other side of the waste tank is closed.
c. If not using the cleaning waste tank, close valve V-705 at then end of the waste hoses
(see Figure 6).
d. Remove the 3-in. hose from the TWPS inlet connection and cap the inlet connection on
the TWPS.
e. Be sure RO Feed Tank Drain Valve V-412 is closed (see Figure 8 for valve location).
f. Open Clean Mixing Valve V-703 (see Figure 9 for valve location).
g. Using the distribution system auxiliary hose, fill the RO feed tank to just over the top of
the baffle plate (90-95% level) with product water from the distribution system.
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
cleaning will result in MF membrane failure.
h. Add one cap of sodium bisulfite from the bisulfite bottle to the RO feed tank while filling
the tank to neutralize the chlorine in the product water.
0021 00-12
