ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
0022 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR INSTRUCTIONS
REVERSE OSMOSIS SYSTEM ACID CLEANING OPERATION UNDER
USUAL CONDITIONS
CAUTION
Failure to add sodium bisulfite to the chlorinated product water that is used for
cleaning will result in RO membrane failure.
c.
Add one cap of sodium bisulfite to the RO feed tank while filling the tank to neutralize the
chlorine in the product water.
d. Reset the RO Feed Tank Low Alarm.
e. Start the RO Feed Pump. Silence any alarms.
1) This flushes product water through the RO vessels and out the waste hose.
2) When the low level is reached, the pump stops and the alarm sounds.
10. Repeat the product water flush of the RO vessels (steps 9b through 9e).
a. While repeating the product water flush of the RO vessels, momentarily open the
following drain valves (see Figure 9 for valve location):
1) RO Feed Pump Drain Valve V-211
2) High Pressure Pump Outlet Drain Valves V-301 and V-302
3) Feed Piping Drain Valve V-304
4) Turbocharger Feed Side Drain Valve V-303
5) Turbocharger Reject Side Drain Valve V-410
b. Momentarily opening and closing these valves allows enough water through the valves to
flush them. Leave the valves in the closed position when completing the flushing
process.
HP PUMP INLET VALVE V-212
RO FEED PUMP DRAIN VALVE V-211
RO FEED PIPING
DRAIN VALVE V-304
HPP OUTLET DRAIN VALVE V-302
HP PUMP OUTLET DRAIN VALVE V-301
TURBOCHARGER REJECT
SIDE DRAIN VALVE V-410
TURBOCHARGER FEED SIDE DRAIN VALVE V-303
Figure 9. Valves for Second RO Product Water Flush.
0022 00-9
