Index: firmware/App/Controllers/BoostPump.c
===================================================================
diff -u -rb92c26da32bed791d9836391080eacf19f221de6 -r3a5cc585b69ffa194e3601a005915d23b48bd865
--- firmware/App/Controllers/BoostPump.c	(.../BoostPump.c)	(revision b92c26da32bed791d9836391080eacf19f221de6)
+++ firmware/App/Controllers/BoostPump.c	(.../BoostPump.c)	(revision 3a5cc585b69ffa194e3601a005915d23b48bd865)
@@ -44,7 +44,7 @@
 #define BOOST_PRESSURE_CONTROL_P_COEFFICIENT             0.01F                                        ///< P term for Boost pump pressure control.
 #define BOOST_PRESSURE_CONTROL_I_COEFFICIENT             0.01F                                        ///< I term for Boost pump pressure control.
 
-#define BOOST_FLOW_TO_PWM_SLOPE                          0.357F                                         ///< Slope of flow to PWM line equation.
+#define BOOST_FLOW_TO_PWM_SLOPE                          0.5F                                         ///< Slope of flow to PWM line equation.
 #define BOOST_FLOW_TO_PWM_INTERCEPT                      0.0F                                         ///< Intercept of flow to PWM line equation.
 #define BOOST_PRESSURE_TO_PWM_SLOPE                      0.5F                                         ///< Slope of pressure to PWM line equation.
 #define BOOST_PRESSURE_TO_PWM_INTERCEPT                  0.0F                                         ///< Intercept of pressure  to PWM line equation.
@@ -198,6 +198,7 @@
             // Set pump to on
             isBoostPumpOn = TRUE;
             boostPumpDutyCyclePctSet = boostPumpPresToPWM( getTargetBoostPumpPressure() );
+            resetPIController( PI_CONTROLLER_ID_BOOST_PUMP_PRES, boostPumpDutyCyclePctSet, 0.0F );
             setFluidPumpPctToPWMDutyCycle( P40_PUMP, boostPumpDutyCyclePctSet );
             state = BOOST_PUMP_CONTROL_TO_TARGET_PRESSURE_STATE;
         }
@@ -208,6 +209,7 @@
             // Set pump to on
             isBoostPumpOn = TRUE;
             boostPumpDutyCyclePctSet = boostPumpFlowToPWM( getTargetBoostPumpFlowRateMLPM() );
+            resetPIController( PI_CONTROLLER_ID_BOOST_PUMP_FLOW, boostPumpDutyCyclePctSet, 0.0F );
             setFluidPumpPctToPWMDutyCycle( P40_PUMP, boostPumpDutyCyclePctSet );
             state = BOOST_PUMP_CONTROL_TO_TARGET_FLOW_STATE;
         }