TM9-2330-388-14
SECTION V. Unit Troubleshooting (Continued)
POTABLE WATER PUMP
Figure 4-3. Pump Piping Schematic
4-8.
Hydrostatic Test
NOTE
Leaks which are invisible or inaudible can
Clean and sanitize the pump immediately
usually be detected by a hydrostatic test. This consists
following the hydrostatic test. Cleaning
of plugging all pump openings and closing the discharge
is described in para 4-36. Sanitizing is
and connecting the pump to a water pressure source-
reviewed in para 4-37.
not over 100 psi. With water pressure on, open the
discharge for a few seconds until water runs out. This al-
lows air to escape. Then, by closing the discharge valve,
the pressure rise in the pump will cause leaks to become
visible.
4-50
