Refer to AWWA literature for basic valve start-up best practices.  The following steps may be used to ensure that start-up is accomplished with a minimum amount of water hammer.

Prepare the Station for Start-up

* Close all maintenance shut-off butterfly valves on all lines, all ACV Control Piping Ball Valves and all drain lines / test cocks.

*Charge the system one line at a time.

    * Slowly open the inlet maintenance valve and bleed the air from the line.

    * Open the ACV Control Piping Inlet Ball Valve

    * Open the ACV Cover Vent Ball Valve to bleed the air.  Close it when all air is discharged.

    * Open the ACV Control Piping Downstream Ball Valve

    * Recheck that all the air is bled from the line.

    * Slowly Open the Discharge Maintenance Valve to charge the downstream line.

Set the Desired Pressure for the ACVs  - This must be done one line at a time, with the other line(s) in a shut-off condition.

    *Slowly create a flow demand on the line that is to be set.  (min 2 gpm)

    * Using an outlet pressure gage as a guide, slowly adjust the PRV Pilot adjustment screw ... In to decrease the limit ... Out to increase the limit.