Sterling A0552321 User Manual

Pump Tanks 

Chapter 4: Operation 

17 of 36 

 

 

All stand-by pumps should be checked intermittently to make sure they are operational for 
when they may be required for usage. 

1.  Open the suction valve fully and lock down. 

2.  Open the discharge valve slowly until it is equal to the pump it will be replacing. 

3.  Shut down the pump being replaced and make sure the suction and discharge valves 

are fully closed. 

1.  Open the discharge manifold valve on the proper side of the divider for the 

pump being replaced. Be sure the opposite discharge manifold valve is fully 
closed. 

2.  Open the suction valve on the proper side of the divider for the pump being 

replaced. Be sure the opposite suction valve is fully closed. 

3.  Open the discharge valve slowly until it is equal to the pump it will be 

replacing. 

4.  Shut down the pump being replaced and make sure the suction and discharge 

valves are fully closed. 

1.  Prepare all process and related equipment for shutdown. 

2.  Shut down all pumps 

3.  Close the water makeup valve. 

4.  If you are draining the system, open the 2” drain valve.