ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0020 00
OPERATOR INSTRUCTIONS
CLEANING, PRESERVATION, AND CLEANING WASTE
NEUTRALIZATION AND PUMP-OUT
e. Measure the pH of the wastewater sample using the pH meter from the WQAS-P (Army)
or the Portable TDS Meter Kit (Marine Corps). Most wastewater treatment plants accept
wastewater with a pH between 6 and 9.
f. If the pH must be reduced, use the priming pitcher to measure 500 ml of citric acid and
pour into the tank. Close the zipper, start the pump and mix for 10 minutes. Repeat
steps c through f until the pH is within the desired range.
g. The RO acid cleaning waste will be at a pH of approximately 4. Soda ash (sodium
carbonate, NSN 6810-01-386-9964, 50 lb container) or acid neutralizer (AN) available
from any water treatment sales outlet may be used to increase the pH. Use the priming
pitcher to add 1000 ml at a time. Close the zipper, start the pump and mix for 10
minutes. Repeat steps c, d, e, and g until the pH is within the desired range.
3. Pump out the cleaning wastewater (refer to Figure 2).
a. Stop the P-1 pump if running.
b. Close the A-16 adaptor valve V-706 on the cleaning waste storage tank outlet to the
pump suction (3).
c. Close the discharge hose A-16 adaptor valve V-706 (5), and the mating A-16 adaptor
valve V-706 on the tank inlet (6).
d. Disconnect the hose A-16 Adaptor (5) from the A-16 adaptor on the tank inlet (6).
e. Hold the discharge hose end (4) above pump level to prevent wastewater spillage and
remove the A-16 adaptor (5) from the end of the hose.
f. Add hoses to the discharge hose as needed to reach the waste-hauling tank. Connect
the A-16 adaptor (5) to the end of the last hose. Leave the V-706 valve closed.
g. Open the A-16 adaptor valve V-706 on the cleaning waste tank outlet (3).
h. Start the P-1 pump. Reduce the speed to about half throttle initially.
i. Direct the discharge hose A-16 adaptor (5) into the waste hauling tank and slowly open
the valve V-706 to discharge the wastewater into the waste-hauling tank.
j. As the cleaning waste storage tank nears empty, lift the tank to shift the wastewater to
the outlet.
k. Drain the final amount of cleaning wastewater from the hoses and pump into buckets and
empty into the waste-hauling tank.
CLEANING WASTE STORAGE TANK
VALVE V-706
TWPS
ADAPTOR A-16
ADAPTOR
VALVE V-706
A-16
3
6
ADAPTOR
A-16
5
P-1 PUMP
4
Figure 2. Cleaning Waste Pump-Out Set-Up.
0020 00-7
