TM 10-4610-229-10
2-7. REVERSE OSMOSIS MEMBRANES CLEANING (CONT)
11
Place barrel on barrel stand. Aline barrel with large connection at bottom, small connection at top, and vent pipe
pointing up.
12
Repeat steps 1 thru 5.
13
Length of cleaning time depends on temperature of water at TI-1. Check table below for correct time period.
Temperature (TI-1)
Time Period
Temperature (TI-1)
Time Period
69°F (16°C)
2 hr 40 min
80°F (27°C)
1 hr 30 min
65°F (18°C)
2 hr 20 min
85°F (29°C)
1 hr 20 min
70°F (21
C)
2 hr
90°F (32°C)
1 hr 10 min
75°F (24
C)
1 hr 40 min
NOTE
BACKWASH TIMER may be used to measure cleaning time period, but must be reset each hour.
14
shut down boost pump (para 2-8).
c. Return to Normal Operation
1
Remove valves V-9 and V-10 from barrel.
2-125
