TM 5-4610-218-12
Table 2-1.
Valves and Draincocks - Continued
Normal
Illus-
Symbol
Location
Function
Type and
Startup
Operating
tration
Size
Position
Position
F i g . No.
Drains
1 in.
Drain line
DV-23
Open
Open
waste
from waste
gate
tank.
tank.
valve.
Drain line
SCV-24
Prevents
2 in.
Closed
Closed
from wet
horizontal
backward
well tank.
flow of
swing
water into
check
wet well
valve.
tank.
Drain
DV-25
Drains
2 in.
Open
Closed
water line
wet well
gate
from wet
tank.
well tank.
Drain line
DV-26
Drains
3/4 in.
Closed
Closed
from chem-
diatomite
gate
i c a l slur-
slurry
valve.
ry feeder
feeder
tank.
compart-
ment.
2-8
