Index: firmware/App/Drivers/GLXferPump.h
===================================================================
diff -u -r285b5d82539c96524c93703d52a66fff76fb64fc -rb32a3dbf0675bb3378e09105e3a80ea9a7779828
--- firmware/App/Drivers/GLXferPump.h	(.../GLXferPump.h)	(revision 285b5d82539c96524c93703d52a66fff76fb64fc)
+++ firmware/App/Drivers/GLXferPump.h	(.../GLXferPump.h)	(revision b32a3dbf0675bb3378e09105e3a80ea9a7779828)
@@ -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_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_MAX_PWM      250             ///< Power level setting (PWM) maximum for H12 air pump.
+#define AIR_PUMP_MOTOR_FILL_PWM      25             ///< Power level setting (PWM) for H12 air pump to fill (raise level) the air trap.
+#define AIR_PUMP_MOTOR_LOWER_PWM    250             ///< Power level setting (PWM) for H12 air pump to lower the level of the air trap.
 
 // ********** public function prototypes **********