TM 5-4610-218-12
Figure 2-8. Limestone slurry calibration chart.
NOTE
f. Preliminary Valve Positioning.
Observe the flow of raw water through
the sight glass, SG-1 (fig. 2-1) for clar-
(1) Valves in the water treatment section
ity and presence of air bubbles. If the
must be positioned correctly prior to starting the
raw water contains excessive air bub-
water purification unit.
bles, stop and check the suction hose
line on the pump for air leaks.
shown in Table 2-1.
(e) If two pumps are connected in series to
g. Generator Set and Raw Water Pump.
deliver raw water, prime the second pump as in (a),
(1) Generator set. Perform the before-oper-
(b) and (c) above. Press the raw water pump switch
ation services and start the gasoline engine-driven
START button (fig. 2-11).
generator, set in accordance with the starting and
h. Starting Chemical Solution Feeder.
maintenance instructions in applicable generator
technical manual.
(1) Perform the before-operation services,
(2) Raw water pumps.
(2) When the raw water starts flowing to the
(a) Perform the before-operation services,
erdlator tank, start the chemical solution feeder
(b) Remove the pump housing priming
plug (fig. 2-12) from the raw water pump.
i. Starting Chemical Slurry Feeder.
(c) Fill the pump impeller housing with
(1) Perform the before-operation services,
water to prime the pump and install the priming
plug.
(d) Press the raw water pump switch
slurry feeder.
START button (fig. 2-11) to start the pump, and de-
liver raw water from the source of supply to the
j. Starting Erdlator for Treatment of Raw
water purification unit.
Water.
Change 3
2-38
