Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -r7cf04dc00d1242aba62f3cd4e4bcb19f1e83ebc6 -r4f026c2e983dcb657a5c980f3572c812b9782ae6
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 7cf04dc00d1242aba62f3cd4e4bcb19f1e83ebc6)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 4f026c2e983dcb657a5c980f3572c812b9782ae6)
@@ -519,7 +519,7 @@
         lgLoadCellReadingsTotal[ res ] += wt;
         lgFilteredReservoirWeightInGrams[ res ] = lgLoadCellReadingsTotal[ res ] / (F32)SIZE_OF_LARGE_LOAD_CELL_AVG;
 
-        wt = ( res == DG_RESERVOIR_1 ? res1Primary : res2Primary );
+        wt = ( res == DG_RESERVOIR_1 ? res1Backup : res2Backup );
         lgLoadCellBackupReadingsTotal[ res ] -= lgLoadCellBackupReadings[ res ][ lgLoadCellReadingsIdx ];
         lgLoadCellBackupReadings[ res ][ lgLoadCellReadingsIdx ] = wt;
         lgLoadCellBackupReadingsTotal[ res ] += wt;
Index: firmware/App/Controllers/DGInterface.h
===================================================================
diff -u -r7cf04dc00d1242aba62f3cd4e4bcb19f1e83ebc6 -r4f026c2e983dcb657a5c980f3572c812b9782ae6
--- firmware/App/Controllers/DGInterface.h	(.../DGInterface.h)	(revision 7cf04dc00d1242aba62f3cd4e4bcb19f1e83ebc6)
+++ firmware/App/Controllers/DGInterface.h	(.../DGInterface.h)	(revision 4f026c2e983dcb657a5c980f3572c812b9782ae6)
@@ -34,7 +34,7 @@
 
 #define DEFAULT_TARGET_FILL_FLOW_RATE_LPM   0.8F    ///< Default target fill flow rate in L/min.
 #define DRAIN_RESERVOIR_TO_VOLUME_ML        0       ///< Drain reservoir to this volume (in mL) during treatment.
-#define LOAD_CELL_PRIMARY_BACKUP_MAX_ALLOWED_DRIFT_GRAMS  10.0F  ///< Reservoir load cell drift difference allowed
+#define LOAD_CELL_PRIMARY_BACKUP_MAX_ALLOWED_DRIFT_GRAMS  100.0F  ///< Reservoir load cell drift difference allowed
 
 /// DG Concentrate ratios data structure.
 typedef struct
Index: firmware/App/Modes/Dialysis.c
===================================================================
diff -u -r03c434e902b640c4093cfc96ceaeb93940c15340 -r4f026c2e983dcb657a5c980f3572c812b9782ae6
--- firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision 03c434e902b640c4093cfc96ceaeb93940c15340)
+++ firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision 4f026c2e983dcb657a5c980f3572c812b9782ae6)
@@ -1318,7 +1318,7 @@
     // TODO remove this debug output
     // Send a comma delimited debug message with drift data
     U08 tempCharBuffer[ 64 ];
-    sprintf( tempCharBuffer, "LoadCellOldDrift,%3.2f,LoadCellNewDrift,%3.2f", loadCellPreviousDrift, loadCellCurrentDrift );
+    sprintf( tempCharBuffer, "LoadCellOldDrift,%3.3f,LoadCellNewDrift,%3.3f,Diff,%3.3f", loadCellPreviousDrift, loadCellCurrentDrift, driftDiff );
     broadcastData( MSG_ID_HD_DEBUG_EVENT, COMM_BUFFER_OUT_CAN_HD_BROADCAST, tempCharBuffer, strlen( tempCharBuffer ) );
 }