ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0018 00
OPERATOR INSTRUCTIONS
EXTENDED SHUT-DOWN DURING DEPLOYMENT OPERATION UNDER
USUAL CONDITIONS
3. Clean the MF Feed Strainer S-2 (refer to WP 0040).
4. Perform the RO Preservation Flush for Extended Shutdown procedures described in WP
0025, RO Preservation.
5. Using Table 1 and Figure 2, return all valves to the indicated start-up position.
6. Perform the MF Preservation Flush for Extended Shutdown procedures described in WP
0026, MF Preservation.
NOTE
Before opening a drain valve, if the temperature is cold enough to freeze water, set the end
of the drain hose into a bucket so that water isn't drained onto the ground around the
TWPS where it can freeze into ice and create a hazard.
Use the heat gun to thaw any drain tube end that becomes blocked with ice. Note that the
heat gun must be plugged into the generator 110-volt outlet and not the TWPS PDP 110-
volt outlet.
7. Using Table 2 and Figure 4, move the valves to the indicated ending position for Extended Shut-
Down. The valves are listed starting from the Operator Control Station moving counter-clockwise
around the TWPS skid. (The illustrations in Figure 4 are included to help you locate the valves.
The valves are not necessarily shown in their ending position for Extended Shut-Down).
8. When water stops draining from a drain tube, disconnect the tube from its valve and hold the end
up to drain the residual water from the tube. Then reconnect the tube to its valve. (It is not
necessary to perform this step for a drain tube that is secured to its valve with a hose clamp.)
NOTE
The Product RO Element 3-Way Valves are in the drain position when the middle pointer
on the valve handle is pointing toward the RO Vessel (see Figure 3).
PRODUCT WATER DISCHARGE PIPE
FROM RO VESSEL
MIDDLE POINTER
Figure 3. RO Element 3-Way Valve in the Drain Position.
0018 00-5
