2-7. ROWPU ASSEMBLY AND PREPARATION FOR USE - cont
Setup Backwash Water System. Refer to figure 2-37.
To prevent contamination of product water system, do not use discharge hoses intended
for potable product water in the raw water system. Product water hoses are identified by
a blue stripe running the full length of the hose.
Ensure all gaskets are in place and quick disconnect couplings are locked.
Connect canvas discharge hose between BACKWASH coupling on control panel and discharge
coupling on backwash strainer.
Remove plug from BACKWASH PUMP electrical receptacle on junction box.
Pass electrical cable under water hoses to prevent tripping hazard.
Tip backwash pump on end and unwrap electrical cable from frame. Connect backwash pump
electrical cable to BACKWASH PUMP receptacle on junction box.
Connect suction hose to suction coupling on backwash pump.
Connect gate valve to suction hose.
Setup backwash water tank in accordance with TM 5-5430-227-12&P/TO 37A12-l-121.
Connect gate valve to backwash tank.
To prevent injury to personnel, secure end of hose in backwash tank.
Hose end may
whip when pressure is applied.
Connect canvas discharge hose to BRINE coupling on control panel and place other end canvas
discharge hose in backwash tank. Make sure cap is removed from end of canvas discharge hose.
Check security of all coupling connections.
2-66.6 Change 2