Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -r80b0182a7af07dde544afa0c33c1d1d6cd6edae8 -r71ecc11dd03b57dbabfd9bb3c4d682162c3d06d7
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 80b0182a7af07dde544afa0c33c1d1d6cd6edae8)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 71ecc11dd03b57dbabfd9bb3c4d682162c3d06d7)
@@ -1059,7 +1059,7 @@
     if ( ( DG_MODE_GENE == dgOpMode ) && ( DG_GEN_IDLE_MODE_STATE_FLUSH_WATER == dgSubMode ) )
     {
         // Drain both reservoirs and return to active res 2 before initial fills
-        if ( ( initialReservoirDrain[ inactiveReservoir ] != TRUE ) || ( inactiveReservoir != DG_RESERVOIR_1 ) )
+        if ( initialReservoirDrain[ inactiveReservoir ] != TRUE )
         {
             initialReservoirDrain[ inactiveReservoir ] = TRUE;
             state = PRE_TREATMENT_RESERVOIR_MGMT_REQUEST_RESERVOIR_SWITCH_STATE;