TM 10-4610-232-12
BACKWASH STEP 3: WATER BACKWASH
BACKWASH AIR VALVE (V22 CLOSED).
BOOSTER PUMP ON.
RAW WATER PUMP ON.
HYPOCHLORITE PUMP REMAINS ON.
VALVE V14 CREW ADJUSTED FOR PROPER FLOW.
(PROPER FLOW SELECTED FROM TABLE AGAINST WATER TEMPERATURE.)
CYCLE TAKES 10 MINUTES.
PURPOSE: DURING THIS STAGE, THE MEDIA BED IS BEING SCOURED AND CLEANED
USING A FASTER FLOW RATE.
Figure 1-11. Backwash Cycle (Sheet 8 of 10)
(MODEL ROWPU-1 ONLY)
Change 12 1-20.3
