TM 10-4610-310-14
0013 00
SHORT TERM SHUTDOWN (less than 96 hours and/or moving)
Prepare the LWP for short-term shutdown.
1. Perform all the steps for product flush.
2. Follow the cold weather drain procedure. See WP 0015 00.
3. Drain the air tank on the high-pressure pump module.
4. Rinse the all modules with clean fresh water to prevent corrosion due to salt residues.
5. Drain the UF module. Open the all valves. See Figures 2, 3, and 4.
6. Complete the movement preparation procedures as necessary. See WP 0018 00.
LONG TERM SHUTDOWN/PRESERVATION (more than 96 hours)
In order to prepare the LWP for long-term shutdown, the system must be preserved as follows:
Perform UF and RO cleaning if necessary. See WP 0038 00 and WP 0043 00. The following steps are for the
LWP that is set up in the normal configuration.
1. Perform all the steps for product flush.
2. Fill cleaning tank with dechlorinated product water to bottom of the cleaning tank inlet. Use the sampling
hose on the RO module.
WARNING
When using chemicals, follow all safety regulations. Always wear eye protection as a minimum.
When handling corrosive chemicals wear goggles and protective clothing and gloves. Failure to
follow this warning may result in injury or death to personnel.
3. The UF module and RO element module will be preserved with a 1% solution of sodium metabisulfite. Add
980 grams (1 full container) of M323 sodium metabisulfite to the cleaning tank on the chemical
injection/cleaning module. Stir with mixing paddle from BII box.
4. Disconnect hose (white) from chemical module outlet.
5. Disconnect hose (white) from RO module outlet connection and from the chemical module inlet connection.
6. Disconnect the filtrate tank inlet hose at the filtrate bag on the UF skid to bypass the filtrate bag and also to
drain the bag (filtrate from this hose will be used to feed the RO module via the cleaning adapter during
preservation). Also, disconnect the vent hose from filtrate bag and cap it. See Figure 8.
VENT HOSE
FILTRATE OUTLETS
FILTRATE INLET
HOSE
Figure 8. Inlet and Outlet locations of the filtrate tank.
