ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0003 00
DESCRIPTION AND THEORY OF OPERATION
THEORY OF OPERATION
Figure 28. Power Distribution Panel.
CLEANING AND PRESERVATION OPERATIONS
The MF element fibers require periodic chemical cleaning to remove dirt and organic material that is not
fully removed by the backwash. The need to clean is indicated by the "Clean MF" alarm. The MF fibers
are always cleaned first with the low pH citric acid and then with the high pH detergent membrane
cleaner. The RO feed tank is used to mix and store the cleaning solutions and the RO feed pump is used
to circulate the solutions. Heaters mounted to the RO feed tank heat the cleaning solutions to improve
their effectiveness. Cleaning valves direct the cleaning solution as required for mixing, circulation and
pump out to waste. The 6-in., red-banded waste out hose is removed and replaced with 2 x 10 cleaning
waste hoses that are normally connected to a cleaning waste storage tank. Adaptor A-12 with Cleaning
Waste Outlet Valve V-705 is connected to the end of the cleaning waste hoses (see Figure 29). A 1500-
gallon cleaning waste storage tank holds the cleaning and rinse wastes. Connected to both sides of the
waste tank is Adaptor A-16 with Shut-Off Valve V-706.
CLEANING WASTE OUTLET
SHUT-OFF VALVE V-706
VALVE V-705
ADAPTOR A-10
ADAPTOR A-16
ADAPTOR A-12
2 X 10 S-HOSE
1500 GAL
ADAPTOR A-16
CLEANING WASTE TANK
Figure 29. Cleaning Waste Storage Tank Set-Up.
0003 00-32
