MIL-HDBK-1164
Table 37 (Continued)
Inspection
Action
(1), (2)
Operating conditions
Q
Flow rates
Check rate of flow through bed; adjust
controls to optimum rate, depending on
type of resin.
Backwash rates
Check rate and adjust controls to
Q
optimum rate.
Pressure
Check difference between inlet and
Q
outlet pressures; if undesirable changes
in pressure drop have occurred, seek
cause and remedy.
Efficiency
Compare total softening capacity with
Q
previous inspection; determine cause of
decrease, if any, and remedy situation.
Out-of-service softeners
Drain; keep synthetic resins damp; do
V
not regenerate before draining.
Demineralization
Maintain according to manufacturer's
V
equipment
instructions.
(1)
Q-Quarterly; SA-Semiannually; A-Annually; V-Variable,
as conditions may indicate.
(2)
The frequencies shown are suggested frequencies that may be modified by
local command, as individual installation conditions warrant.
11.5.8.2
Demineralization Equipment. Ion-exchange equipment used for
demineralization is highly specialized. Maintain it according to the manufacturer's
instructions.
11.5.9
Recarbonation Equipment
11.5.9.1
Combustion Units. Maintenance of combustion units depends on the
equipment used, fuel impurities, the effectiveness of the scrubber and drier, and the
materials of construction. Consult the manufacturer's instructions for maintenance of
the compressor or blower.
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