Index: firmware/App/Drivers/GLXferPump.c
===================================================================
diff -u -rd595ea4a23b0b2371e31838c24990059653c1871 -r3fe55376370dc82b5edcb20ac6026d8f079e401b
--- firmware/App/Drivers/GLXferPump.c	(.../GLXferPump.c)	(revision d595ea4a23b0b2371e31838c24990059653c1871)
+++ firmware/App/Drivers/GLXferPump.c	(.../GLXferPump.c)	(revision 3fe55376370dc82b5edcb20ac6026d8f079e401b)
@@ -28,7 +28,7 @@
 
 // ********** private definitions **********
 
-#define AIR_PUMP_PWM_TIME           800               ///< Time (in 10ns increments) per PWM register count for the air pump.
+#define AIR_PUMP_PWM_TIME           250               ///< Time (in 10ns increments) per PWM register count for the air pump = 20 kHz.
 
 // ********** private data **********
 
@@ -47,8 +47,8 @@
 void initGasLiqXferPumpDriver(void)
 {
     currentAirPumpMotorPowerLevel = AIR_PUMP_MOTOR_OFF;
-    setAirPumpMotorPowerLevel( currentAirPumpMotorPowerLevel );
-    setAirPumpMotorPWMCntTime( AIR_PUMP_PWM_TIME );
+    setH12AirPumpMotorPowerLevel( currentAirPumpMotorPowerLevel );
+    setH12AirPumpMotorPWMCntTime( AIR_PUMP_PWM_TIME );
 }
 
 /*********************************************************************//**
@@ -67,7 +67,7 @@
     if ( power != currentAirPumpMotorPowerLevel )
     {
         SEND_EVENT_WITH_2_U32_DATA( TD_EVENT_AIR_PUMP_ON_OFF, (U32)currentAirPumpMotorPowerLevel, (U32)power );
-        setAirPumpMotorPowerLevel( power );
+        setH12AirPumpMotorPowerLevel( power );
         currentAirPumpMotorPowerLevel = power;
     }
 }
Index: firmware/App/Drivers/GLXferPump.h
===================================================================
diff -u -r285b5d82539c96524c93703d52a66fff76fb64fc -r3fe55376370dc82b5edcb20ac6026d8f079e401b
--- firmware/App/Drivers/GLXferPump.h	(.../GLXferPump.h)	(revision 285b5d82539c96524c93703d52a66fff76fb64fc)
+++ firmware/App/Drivers/GLXferPump.h	(.../GLXferPump.h)	(revision 3fe55376370dc82b5edcb20ac6026d8f079e401b)
@@ -34,9 +34,9 @@
 // ********** public definitions **********
 
 #define AIR_PUMP_MOTOR_OFF          0               ///< Power level setting (PWM) for H12 air pump to turn pump off.
-#define AIR_PUMP_MOTOR_MAX_PWM      255             ///< Power level setting (PWM) maximum for H12 air pump.
+#define AIR_PUMP_MOTOR_MAX_PWM      250             ///< Power level setting (PWM) maximum for H12 air pump.
 #define AIR_PUMP_MOTOR_FILL_PWM     50              ///< Power level setting (PWM) for H12 air pump to fill (raise level) the air trap.
-#define AIR_PUMP_MOTOR_LOWER_PWM    150             ///< Power level setting (PWM) for H12 air pump to lower the level of the air trap.
+#define AIR_PUMP_MOTOR_LOWER_PWM    50              ///< Power level setting (PWM) for H12 air pump to lower the level of the air trap.
 
 // ********** public function prototypes **********
 
Index: firmware/App/Services/FpgaTD.c
===================================================================
diff -u -raa6d45143096dfab776ce2ed7c775cfe2dd6db18 -r3fe55376370dc82b5edcb20ac6026d8f079e401b
--- firmware/App/Services/FpgaTD.c	(.../FpgaTD.c)	(revision aa6d45143096dfab776ce2ed7c775cfe2dd6db18)
+++ firmware/App/Services/FpgaTD.c	(.../FpgaTD.c)	(revision 3fe55376370dc82b5edcb20ac6026d8f079e401b)
@@ -763,29 +763,29 @@
 
 /*********************************************************************//**
  * @brief
- * The setAirPumpMotorPowerLevel function sets the air pump motor power level
+ * The setH12AirPumpMotorPowerLevel function sets the air pump motor power level
  * to 0 to turn pump off or 1..255 for varying power levels.
  * @details \b Inputs: fpgaActuatorSetPoints.h12Control
  * @details \b Outputs: fpgaActuatorSetPoints.h12Control
  * @param power The set power level to set the H12 air pump to.
  * @return none
  *************************************************************************/
-void setAirPumpMotorPowerLevel( U08 power )
+void setH12AirPumpMotorPowerLevel( U08 power )
 {
     fpgaActuatorSetPoints.h12Control = power;
 }
 
 /*********************************************************************//**
  * @brief
- * The setAirPumpMotorPWMCntTime function sets the air pump motor PWM count
+ * The setH12AirPumpMotorPWMCntTime function sets the air pump motor PWM count
  * time in increments of 10 nS.  The PWM period will then be 255 x given
  * value x 10 nS.
  * @details \b Inputs: fpgaActuatorSetPoints.h12Period
  * @details \b Outputs: fpgaActuatorSetPoints.h12Period
  * @param tenNS The time associated with each PWM count in power level setting.
  * @return none
  *************************************************************************/
-void setAirPumpMotorPWMCntTime( U16 tenNS )
+void setH12AirPumpMotorPWMCntTime( U16 tenNS )
 {
     fpgaActuatorSetPoints.h12Period = tenNS;
 }
Index: firmware/App/Services/FpgaTD.h
===================================================================
diff -u -raa6d45143096dfab776ce2ed7c775cfe2dd6db18 -r3fe55376370dc82b5edcb20ac6026d8f079e401b
--- firmware/App/Services/FpgaTD.h	(.../FpgaTD.h)	(revision aa6d45143096dfab776ce2ed7c775cfe2dd6db18)
+++ firmware/App/Services/FpgaTD.h	(.../FpgaTD.h)	(revision 3fe55376370dc82b5edcb20ac6026d8f079e401b)
@@ -98,8 +98,8 @@
 void setH13ValveState( VALVE_3WAY_STATE_T state );
 void setH20ValveState( VALVE_3WAY_STATE_T state );
 
-void setAirPumpMotorPowerLevel( U08 power );
-void setAirPumpMotorPWMCntTime( U16 tenNS );
+void setH12AirPumpMotorPowerLevel( U08 power );
+void setH12AirPumpMotorPWMCntTime( U16 tenNS );
 
 void setH19Control( U08 controlBits );
 U08  getH19Control( void );
Index: firmware/App/Tasks/TaskGeneral.c
===================================================================
diff -u -raa6d45143096dfab776ce2ed7c775cfe2dd6db18 -r3fe55376370dc82b5edcb20ac6026d8f079e401b
--- firmware/App/Tasks/TaskGeneral.c	(.../TaskGeneral.c)	(revision aa6d45143096dfab776ce2ed7c775cfe2dd6db18)
+++ firmware/App/Tasks/TaskGeneral.c	(.../TaskGeneral.c)	(revision 3fe55376370dc82b5edcb20ac6026d8f079e401b)
@@ -178,7 +178,7 @@
         ++tmpCtr;
         if ( tmpCtr == ( 5 * 20 ) )
         {
-            setAirPumpMotorPower( 255 );
+            setAirPumpMotorPower( 250 );
             set3WayValveState( H13_VALV, VALVE_3WAY_COMMON_TO_OPEN_STATE );
         }
         else if ( tmpCtr == ( 10 * 20 ) )
@@ -188,7 +188,7 @@
         }
         else if ( tmpCtr == ( 15 * 20 ) )
         {
-            setAirPumpMotorPower( 255 );
+            setAirPumpMotorPower( 250 );
             set3WayValveState( H20_VALV, VALVE_3WAY_COMMON_TO_OPEN_STATE );
         }
         else if ( tmpCtr >= ( 20 * 20 ) )
@@ -235,7 +235,7 @@
             sta = 1;
             // lower the level
             set3WayValveState( H13_VALV, VALVE_3WAY_COMMON_TO_OPEN_STATE );
-            setAirPumpState( AIR_PUMP_STATE_ON, 25 );
+            setAirPumpState( AIR_PUMP_STATE_ON, 50 );
         }
         break;
     case 1:
@@ -256,7 +256,7 @@
         {
             // raise the level
             set3WayValveState( H20_VALV, VALVE_3WAY_COMMON_TO_OPEN_STATE );
-            setAirPumpState( AIR_PUMP_STATE_ON, 25 );
+            setAirPumpState( AIR_PUMP_STATE_ON, 50 );
             sta = 3;
         }
 #endif
@@ -278,7 +278,7 @@
         {
             // start raising level
             set3WayValveState( H20_VALV, VALVE_3WAY_COMMON_TO_OPEN_STATE );
-            setAirPumpState( AIR_PUMP_STATE_ON, 25 );
+            setAirPumpState( AIR_PUMP_STATE_ON, 50 );
             sta = 3;
         }
 #endif
@@ -288,7 +288,7 @@
         {
             // lower the level
             set3WayValveState( H13_VALV, VALVE_3WAY_COMMON_TO_OPEN_STATE );
-            setAirPumpState( AIR_PUMP_STATE_ON, 25 );
+            setAirPumpState( AIR_PUMP_STATE_ON, 50 );
             sta = 1;
         }
 #endif