2-9. OPERATING PROCEDURES - cont.
Start Booster Pump. Refer to figure 2-58.
Set VENT CARTRIDGE FILTER valve to OPEN.
Push BOOSTER PUMP switch upward to START and hold.
When BOOSTER PUMP lamp comes on, release switch. Switch will return to RUN.
Set VENT CARTRIDGE FILTER valve to CLOSE as soon as a full stream of water flows out of
vent pipe (located at bottom, right of R.O. pump screen belt guard).
Start R.O. Pump. Refer to figure 2-58.
(Models WPES-10, WPES-20, and WPES-30) To prevent injury to personnel, do not
stand in front of the vent pipe when venting pulse dampener.
Make sure VENT VESSELS gate valve (5, figure 2-46) and REGULATE PRODUCT FLOW
valves (4) are open.
Set VENT PULSE DAMPENER (Models WPES-10, WPES-20, and WPES-30) valve (figure 2-
58) to OPEN.
Push R.O. PUMP RESET switch upward, R.O. PUMP LOW PRESSURE lamp goes OFF and
switch returns to ON.
(Models H-9518-1, H-9518-2, and H-9518-3) Make sure that water is coming out of the waste
To prevent damage to the pump, on Models H-9518-1, H-9518-2 and H-9518-3, water
must be flowing through the pump and into the drain line before it is turned on.
Hold R.O. PUMP switch upward to START.
As soon as R.O. PUMP lamp comes on, release switch. Switch will return to RUN.
Set the VENT PULSE DAMPENER valve (Models WPES-10 , WPES-20, and WPES-30) to
CLOSE as soon as you see a full stream of water coming from the vent pipe.
VENT VESSELS and WASTE hoses must be placed at least 25 yards down stream of
raw water intake.
Filtered water is bypassing the R.O. vessels.
Observe end of VENT VESSELS hose for water flow and clarity. Note that the water coming out
of VENT VESSELS hose should be getting clearer. Within 10 minutes, water should be clear.
As soon as water appears completely clear or after 10 minutes, proceed to next step.