Index: firmware/App/Modes/ModeHeatDisinfect.c
===================================================================
diff -u -r353d01d31bc69d4d1901ff09097ee610bb1c9dbc -rf5dc98b3d5fcd39e3ab502fbe81110e188ce0ec5
--- firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 353d01d31bc69d4d1901ff09097ee610bb1c9dbc)
+++ firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision f5dc98b3d5fcd39e3ab502fbe81110e188ce0ec5)
@@ -607,9 +607,8 @@
     if ( TRUE == didTimeout( stateTimer, FLUSH_DRAIN_WAIT_TIME_MS ) )
     {
         // If the inlet temperature and conductivity are in range, move onto the next state
-        //if ( ( getTemperatureValue( TEMPSENSORS_INLET_PRIMARY_HEATER ) > MIN_INLET_TEMPERATURE_C ) &&
-        //     ( getConductivityValue( CONDUCTIVITYSENSORS_CPI_SENSOR )  <=  MAX_INLET_CONDUCTIVITY_US_PER_CM ) )
-        if ( TRUE ) // DEBUG_DENALI enable the conductivity check
+        if ( ( getTemperatureValue( TEMPSENSORS_INLET_PRIMARY_HEATER ) > MIN_INLET_TEMPERATURE_C ) &&
+             ( getConductivityValue( CONDUCTIVITYSENSORS_CPI_SENSOR )  <=  MAX_INLET_CONDUCTIVITY_US_PER_CM ) )
         {
             setValveState( VPD, VALVE_STATE_OPEN_C_TO_NC );
             setROPumpTargetFlowRateLPM( RO_PUMP_TARGET_FLUSH_FILL_FLOW_RATE_LPM, MAX_RO_PUMP_FLUSH_FILL_PRESSURE_PSI );