Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -r3f22d883958a14b6193d6cd59c9acdbbd359b69e -r3461c140ba07e74863dee1d4c51d0119076fecf8
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 3f22d883958a14b6193d6cd59c9acdbbd359b69e)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 3461c140ba07e74863dee1d4c51d0119076fecf8)
@@ -166,7 +166,8 @@
     if ( isInletWaterReady )
     {
         // Concentrate pumps on request and set RO pump to flow rate 800 mL/min
-        requestConcentratePumpsOn();
+        requestConcentratePumpsOn( CONCENTRATEPUMPS_CP1 );
+        requestConcentratePumpsOn( CONCENTRATEPUMPS_CP2 );
         // TODO: Change to set flow rate once RO pump driver is updated
         // setROPumpFlowRate( FILL_TARGET_RO_FLOW_RATE );
         setROPumpTargetPressure( FILL_TARGET_RO_PRESSURE_PSI, PUMP_CONTROL_MODE_CLOSED_LOOP );
@@ -240,7 +241,8 @@
     // if we've reached our target fill to volume (by weight), we're done filling - go back to re-circ mode
     if ( hasTargetFillVolumeBeenReached( inactiveReservoir ) )
     {
-        requestConcentratePumpsOff();
+        requestConcentratePumpsOff( CONCENTRATEPUMPS_CP1 );
+        requestConcentratePumpsOff( CONCENTRATEPUMPS_CP2 );
         requestNewOperationMode( DG_MODE_CIRC );
     }