2-13. R.O. ELEMENT CLEANING PROCEDURE - cont.
Push ELEMENT CLEANING switch (24, figure 2-5) to START.
When backwash tank is empty, push ELEMENT CLEANING switch (24) to OFF.
Reconnect vent vessel hose to VENT VESSELS coupling on control panel (figure 2-71).
To prevent injury to personnel, vent vessels hose must be placed at least 25 yards down stream of raw
Disconnect vent vessels hose from backwash pump strainer and place end of hose at least 25 yards
down stream of raw water intake.
Reconnect backwash hose to backwash pump strainer.
Remove brine hose from opening in backwash tank and allow to drain on ground.
Perform normal ROWPU startup (para. 2-9).
Operate ROWPU for 10 minutes with the brine and product water hoses out of tanks and REGULATE
PRODUCT FLOW valve (18, figure 2-5) fully open (turned fully to the left until it stops) to rinse the
R.O. pressure tube.