Index: firmware/App/Controllers/DialInFlow.c
===================================================================
diff -u -r38b5b0408730290c3ad591711ba1613e85045cd5 -r443145b68c1a39efa6ffe4f8ac624cf91ec55d69
--- firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 38b5b0408730290c3ad591711ba1613e85045cd5)
+++ firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 443145b68c1a39efa6ffe4f8ac624cf91ec55d69)
@@ -98,8 +98,8 @@
 #define DIP_ML_PER_MIN_TO_PUMP_RPM_FACTOR    ( DIP_REV_PER_LITER / ML_PER_LITER )
 #define DIP_GEAR_RATIO                       32.0            ///< DialIn pump motor to dialIn pump gear ratio.
 #define DIP_PWM_ZERO_OFFSET                  0.1             ///< 10% PWM duty cycle = zero speed.
-/// Macro converts flow rate to estimate PWM needed to achieve it.
-#define DIP_PWM_FROM_ML_PER_MIN(rate)        ( (rate) * DIP_ML_PER_MIN_TO_PUMP_RPM_FACTOR * DIP_GEAR_RATIO * DIP_MOTOR_RPM_TO_PWM_DC_FACTOR + DIP_PWM_ZERO_OFFSET )
+/// Macro converts flow rate to estimate PWM needed to achieve it.   // TODO - I added 1.2 gain based on empirical data
+#define DIP_PWM_FROM_ML_PER_MIN(rate)        ( (rate) * DIP_ML_PER_MIN_TO_PUMP_RPM_FACTOR * DIP_GEAR_RATIO * DIP_MOTOR_RPM_TO_PWM_DC_FACTOR * 1.2 + DIP_PWM_ZERO_OFFSET )
 /// Conversion from PWM duty cycle % to commanded pump motor speed.
 #define DIP_PWM_TO_MOTOR_SPEED_RPM(pwm)      ( ((pwm) - DIP_PWM_ZERO_OFFSET) * 4000.0 )