ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
0024 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR INSTRUCTIONS
MICRO-FILTRATION SYSTEM CLEANING WITH REVERSE OSMOSIS
SYSTEM ACID CLEANING OPERATION UNDER USUAL CONDITIONS
d. Make sure the A-16 adaptor valve V-706 on the other side of the waste tank is closed.
e. If not using the cleaning waste storage tank, open valve V-705 on Adaptor A-12 at the
end of the cleaning waste hoses (see Figure 6).
f. Set the MF Clean Switch to Drain #2. The RO feed pump starts and flushes the cleaning
solution from the tank through the MF and out the waste hose.
NOTE
When the RO feed tank level reaches the Low Level Switch, the alarm sounds and
the RO feed pump stops. Occasionally the RO pump will lose prime before
reaching the low level. In this case, if the RO pump does not stop within 15
seconds from when the tank level reads zero, stop the RO pump.
CAUTION
Failure to close MF Clean Feed Valve V-704 at this point will result in water flow
back into the RO feed tank rather than out as required.
g. Wait for the RO feed pump to stop, then close MF Clean Feed Valve V-704 (see Figure
10 for valve location).
4. Drain #3: Set the MF Clean switch to Drain #3 to purge the remaining acid cleaning solution from
the MF modules with air as follows:
a. A normal air purge drain down cycle automatically sequences.
b. Cleaning solution drains out through the cleaning waste hoses.
c. During the Drain #3 cycle, slightly open MF Clean Feed Valve V-704 for just a moment to
push cleaning solution out of the cleaning bypass piping.
d. The Clean light flashes during the cycle and turns off when complete.
5. Rinse the MF system with product water as follows:
a. Remove the cap from the MF inlet and reconnect the 3-in. TPWS inlet hose.
b. Set the MF Clean switch to RINSE.
1) This initiates an automatic rinse cycle using product water from the MF feed tank.
The Clean light flashes during this cycle.
2) The MF feed pump starts automatically.
3) The MF feed pump stops.
4) The Clean Light turns off at the end of the cycle.
c. The cycle ends in STANDBY (the standby light comes on.)
6. End the MF Acid Clean by setting the MF Clean switch to OFF.
WARNING
Acid chemical. Wear a protective face shield, chemical gloves, and a chemical
apron when there is a potential for contact with citric acid solution. Avoid inhaling
chemical fumes. If acid spills, immediately flush the area with water from the
auxiliary hose. Failure to observe this warning may result in mild irritation of the
nose, throat, eyes, and skin.
0024 00-13
