Index: firmware/App/Modes/ModePostTreat.c
===================================================================
diff -u -r8b73263b38f449dacc0795c67a7cf6240cb79026 -ref398e685d6cfbdcb8c18fd9319819672c6c9d89
--- firmware/App/Modes/ModePostTreat.c	(.../ModePostTreat.c)	(revision 8b73263b38f449dacc0795c67a7cf6240cb79026)
+++ firmware/App/Modes/ModePostTreat.c	(.../ModePostTreat.c)	(revision ef398e685d6cfbdcb8c18fd9319819672c6c9d89)
@@ -538,10 +538,13 @@
 
     if ( ( DG_MODE_GENE == getDGOpMode() ) && ( DG_GEN_IDLE_MODE_STATE_FLUSH_WATER == getDGSubMode() ) )
     {
+        DG_SWITCH_RSRVRS_CMD_T rsrvrCmd;
+
         // The first drain starts with setting the reservoir 2 as active and then the first reservoir is drained
-        DG_RESERVOIR_ID_T id = ( TRUE == isThisFirstDrain ? DG_RESERVOIR_2 : DG_RESERVOIR_1 );
+        rsrvrCmd.reservoirID            = (U32)( TRUE == isThisFirstDrain ? DG_RESERVOIR_2 : DG_RESERVOIR_1 );
+        rsrvrCmd.useLastTrimmerHeaterDC = FALSE;
 
-        cmdSetDGActiveReservoir( id );
+        cmdSetDGActiveReservoir( &rsrvrCmd );
 
         if ( TRUE == hasDGCompletedReservoirSwitch() )
         {