3-48. INTERVESSEL
TM 55-2090-201-14&P
L O C A T I O N
I T E M
A C T I O N
R E M A R K S
d. To drain water from the
first stage (prefilter)
(2):
(1) Close the two manual
shutoff valves (10
and 11) located on
the main flow line
at the inlet to the
first stage (pre-
filter) (2) and
between the first
(prefilter) and
second stages.
(2) Open the drain valve
(12) at the base of
the vessel.
e. To drain water from second
or third stages (3 or 6):
(1) Close the two inter-
vessel shutoff valves
(13 and 14) on either
side of the second
stage (3) or the
intervessel shutoff
valve (14) for drain-
age of the third stage
(6).
(2) Open the drain valve
(15 or 16) at the base
of the vessel.
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