Index: firmware/App/Modes/FlushConcentrate.c
===================================================================
diff -u -r6d85a90d2325163e936055a620a8b6aa1a6db65a -rba9341bc691b500d5ec3904fec1eb38279c5fbbd
--- firmware/App/Modes/FlushConcentrate.c	(.../FlushConcentrate.c)	(revision 6d85a90d2325163e936055a620a8b6aa1a6db65a)
+++ firmware/App/Modes/FlushConcentrate.c	(.../FlushConcentrate.c)	(revision ba9341bc691b500d5ec3904fec1eb38279c5fbbd)
@@ -217,7 +217,7 @@
             {
                 setBoostPumpTargetPressure( CONCENTRATE_FLUSH_BOOST_PUMP_TGT_PSI );
             }
-            setROPumpTargetDutyCycle( CONCENTRATE_FLUSH_RO_PUMP_TGT_PWM );
+            setROPumpTargetDutyCycle( CONCENTRATE_FLUSH_RO_PUMP_TGT_PWM, TRUE );
             concentrateFlushTimer = getMSTimerCount();
             cumulativeConcentrateVolume_mL = 0;
             break;