Index: firmware/App/Modes/ModeHeatDisinfect.c
===================================================================
diff -u -raa36ab1ed13d099286cedcbd066f7dce11146d13 -r1538c71d0c6b97469d599befce15f068d9acf5d4
--- firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision aa36ab1ed13d099286cedcbd066f7dce11146d13)
+++ firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 1538c71d0c6b97469d599befce15f068d9acf5d4)
@@ -326,7 +326,7 @@
         setValveState( VRF, VALVE_STATE_R2_C_TO_NO );
 
         setROPumpTargetFlowRate( RO_PUMP_TARGET_FLOW_RATE_LPM );
-        setDrainPumpTargetDeltaPressure( 0.05 ); //DRAIN_PUMP_TARGET_DELTA_PRESSURE
+        setDrainPumpTargetDeltaPressure( DRAIN_PUMP_TARGET_DELTA_PRESSURE ); //DRAIN_PUMP_TARGET_DELTA_PRESSURE
 
         setPrimaryHeaterTargetTemperature( HEAT_DISINFECT_TARGET_TEMPERATURE );
         startPrimaryHeater();
@@ -407,9 +407,6 @@
         setValveState( VRI, VALVE_STATE_R2_C_TO_NC );
         setValveState( VRF, VALVE_STATE_R1_C_TO_NC );
 
-        setDrainPumpTargetDeltaPressure( DRAIN_PUMP_TARGET_DELTA_PRESSURE );
-        setROPumpTargetFlowRate( RO_PUMP_TARGET_FLOW_RATE_LPM );
-
         stateTimer = getMSTimerCount();
         state = DG_HEAT_DISINFECT_STATE_DISINFECT_R1_TO_R2;
     }
@@ -450,9 +447,6 @@
         setValveState( VRI, VALVE_STATE_R2_C_TO_NC );
         setValveState( VRF, VALVE_STATE_R1_C_TO_NC );
 
-        setDrainPumpTargetDeltaPressure( DRAIN_PUMP_TARGET_DELTA_PRESSURE );
-        setROPumpTargetFlowRate( RO_PUMP_TARGET_FLOW_RATE_LPM );
-
         stateTimer = getMSTimerCount();
         state = DG_HEAT_DISINFECT_STATE_DISINFECT_R2_TO_R1;
     }
@@ -517,7 +511,6 @@
             setValveState( VRD, VALVE_STATE_R1_C_TO_NO );
             setValveState( VRI, VALVE_STATE_R1_C_TO_NO );
             setValveState( VRF, VALVE_STATE_R2_C_TO_NO );
-            setROPumpTargetFlowRate( RO_PUMP_TARGET_FLOW_RATE_LPM );
             stateTimer = getMSTimerCount();
             heatDisinfectInternalState = INTERNAL_HEAT_DISINFECT_STATE_OFF;
             state = DG_HEAT_DISINFECT_STATE_DISINFECT_RECIRC_PATH;