TM 5-4610-218-12
RECIRCULATION.
(7) Open filter pump draincock DC-47.
(4) Open draincocks DC-42 and DC-44 in the
2-12. Shutting Down Erdlator.
influent and effluent gage lines.
(5) Turn filter effluent control valve CV-46 to
water treatment section.
FILTER.
(6) Open air vent valve CV-38 and precoat
funnel valve CV-37.
STEP 1. CLOSE SLURRY FEEDER VARIATOR INDICATORS.
STEP 2. STOP SLURRY FEEDER BY DEPRESSING STOP BUTTON.
STEP 3. REMOVE SOLUTION FEEDER SUCTION HOSES FROM ALL SOLUTION TANKS. ALLOW FEEDER TO PUMP UNTIL ALL SOLUTION
HAS BEEN DRAWN FROM HOSES.
STEP 4. STOP SOLUTION FEEDER BY PRESSING STOP BUTTON.
STEP 5. STOP FLOW OF RAW WATER.
STEP 6. STOP ERDLATOR AGITATOR DRIVE MOTOR BY PRESSING STOP BUTTON.
TS 4610-218-12/2-19
Figure 2-19. Stopping water treatment section.
b. Draining. The water treatment section must
valves DV-19 and DV-20.
be drained when the unit is to be moved, shut down
NOTE
during freezing temperatures, or if the unit is to be
If the erdlator is to be shut down for a
inoperative for periods in excess of 48 hours. To
short period and there is no possi-
drain the water treatment section, perform the fol-
bility of the water freezing, do not
lowing steps referring to figure 2-1 for location of
open the erdlator lower drain valve
all valves.
DV-20. Water will drain from the
(1) Open the waste tank drain valve DV-23.
upper drain valve DV-19 leaving
(2) Open wet well drain valve DV-25.
enough slurry in the bottom of the er-
dlator tank to form a slurry blanket
(3) Open drawoff control valves CV-16 and
quickly when operation is resumed.
CV-17.
(6) Open slurry feeder drain valves DV-26 and
(4) Open sludge concentrator drain valves
DV-27.
DV-21 and DV-22.
(7) Open filter section coagulated water influ-
(5) Open erdlator upper and lower drain
2-47
