ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0017 00
OPERATOR INSTRUCTIONS
STANDBY OR SHORT-TERM SHUTDOWN OPERATION UNDER
USUAL CONDITIONS
PRODUCT WATER DISCHARGE PIPE
MIDDLE POINTER
FROM RO VESSEL
Figure 8. RO Element Three Way Valve in the Drain Position.
d. While purging, open RO drain valves V-302, 303, 304 and 410 until air is noted. Then
close until the purge is completed.
e. Close RO Air Purge Valve V-913 when only a trickle of water is draining out the RO
Vessel Drain Valve V-408.
f. Disconnect the auxiliary air hose at the V-913 end and connect the air gun (from the Tool
Box) to the air hose.
g. Blow the water out of the HP pumps as follows (see Figure 9):
1) Open valve V-215 under the HP Pumps.
2) Disconnect the HP Pump cooling water return tubes from the RO Feed Tank.
3) Connect one end of the auxiliary air hose to the quick-disconnect fitting above
the compressor opposite Pressure Gauge PI-902.
4) Connect the auxiliary air gun to the other end of the auxiliary air hose.
5) Using the air gun, blow air into each of the cooling water return tubes to push
water out of the pumps and out the tube at valve V-215.
6) Reconnect the HP Pump cooling water return tubes after the pumps are drained.
AUXILIARY AIR HOSE
AUXILIARY AIR GUN
QUICK-DISCONNECT FITTING
V-215
COOLING WATER
PI-902
RETURN TUBES
Figure 9. High Pressure Pump Drain Valve and Cooling Water Return Tubes.
0017 00-12
