ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
0025 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR INSTRUCTIONS
REVERSE OSMOSIS SYSTEM PRESERVATION OPERATION UNDER
USUAL CONDITIONS
3. Prepare water for RO preservation as follows (see Figure 12 for valve location):
a. Make sure Main RO Feed Tank Drain Valve V-412 and RO Feed Tank Auxiliary Drain
Valve V-210 are closed.
b. Close MF Clean Feed Valve V-704.
c. Open Clean Mixing Valve V-703.
d. Close RO Clean Feed Valve V-701.
e. Close HP Pump Inlet Valve V-212.
f. Close Clean Return Valve V-702.
CLEAN RETURN VALVE V-702
HPP INLET VALVE V-212
MF CLEAN FEED VALVE V-704
CLEAN MIXING VALVE V-703
RO CLEAN FEED VALVE V-701
RO FEED TANK MAIN DRAIN VALVE V-412
RO FEED TANK AUXILIARY DRAIN VALVE V-210
Figure 12. Valves for Preparing Water for RO Preservation.
g. Set the SYSTEM MODE SWITCH to RO CLEAN.
h. 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.
i. Reset the RO feed tank low alarm.
j. Start the RO feed pump. This circulates water through the RO feed pump and back into
the RO feed tank through Clean Mixing Valve V-703 to provide mixing when bisulfite is
added to the water.
k. Silence any alarms.
0025 00-11
