Index: firmware/App/Drivers/GLXferPump.h
===================================================================
diff -u -r16219f68040cc257728be31ce24f7e23e2769f48 -r285b5d82539c96524c93703d52a66fff76fb64fc
--- firmware/App/Drivers/GLXferPump.h	(.../GLXferPump.h)	(revision 16219f68040cc257728be31ce24f7e23e2769f48)
+++ firmware/App/Drivers/GLXferPump.h	(.../GLXferPump.h)	(revision 285b5d82539c96524c93703d52a66fff76fb64fc)
@@ -34,6 +34,7 @@
 // ********** 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.