Index: firmware/App/Services/Reservoirs.c
===================================================================
diff -u -r9c523a8628bb75b601c048f67d3ef7250f45f547 -r012ee7b4f72e47aa351eb723abca0e3104ea677b
--- firmware/App/Services/Reservoirs.c	(.../Reservoirs.c)	(revision 9c523a8628bb75b601c048f67d3ef7250f45f547)
+++ firmware/App/Services/Reservoirs.c	(.../Reservoirs.c)	(revision 012ee7b4f72e47aa351eb723abca0e3104ea677b)
@@ -45,8 +45,10 @@
 
 #define MIN_DRAIN_INLET_PSI_EMPTY       -3.0                                            ///< Minimum drain inlet pressure (in PSI) to indicate reservoir is empty while drain pump on.
 
-#define RESERVOIR_DATA_PUB_INTERVAL     ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )       ///< interval (ms/task time) at which the reservoir data is published on the CAN bus.
+#define RESERVOIR_DATA_PUB_INTERVAL     ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )       ///< interval (ms/task time) at which the reservoir data is published on the CAN bus.
 
+#define MAX_REDUNDANT_LOAD_CELL_DIFF    50.0                                            ///< Maximum difference in redundant load cells when determing if fill completed.
+
 // ********** private data **********
 
 static U32 reservoirDataPublicationTimerCounter = 0;                                    ///< used to schedule reservoir data publication to CAN bus.
@@ -461,10 +463,17 @@
  *************************************************************************/
 BOOL hasTargetFillVolumeBeenReached( DG_RESERVOIR_ID_T reservoirId )
 {
-    F32 const loadcellWeight = getLoadCellSmallFilteredWeight( associatedLoadCell[ reservoirId ] );
+    F32 const loadcellWeight1 = getLoadCellSmallFilteredWeight( associatedLoadCell[ reservoirId ] );
+    F32 const loadcellWeight2 = getLoadCellSmallFilteredWeight( redundantLoadCell[ reservoirId ] );
     U32 const targetFillVolume = getU32OverrideValue( &fillVolumeTargetMl );
-    BOOL const hasTargetReached = ( loadcellWeight >= targetFillVolume );
+    BOOL const hasTargetReached = ( ( loadcellWeight1 >= targetFillVolume || loadcellWeight2 > ( targetFillVolume + MAX_REDUNDANT_LOAD_CELL_DIFF ) ) ? TRUE : FALSE );
 
+    // if redundant load cells too far apart at end of fill, alarm
+    if ( loadcellWeight1 < targetFillVolume )
+    {
+        // TODO - alarm
+    }
+
     return hasTargetReached;
 }