Index: firmware/App/Modes/Dialysis.c
===================================================================
diff -u -rcbaa57803fa8359407a799fca0cde6ae2c486bd7 -r43e59e505bbea87c76822c51a3273eec3f4addaa
--- firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision cbaa57803fa8359407a799fca0cde6ae2c486bd7)
+++ firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision 43e59e505bbea87c76822c51a3273eec3f4addaa)
@@ -1254,20 +1254,25 @@
     loadCellBackupWeight  = getReservoirBackupWeightLargeFilter( reservoirID );
     loadCellCurrentDrift = fabs( loadCellPrimaryWeight - loadCellBackupWeight );
 
-    if ( lcLastSteadyWeight[lcPrimaryIndex] > (LOAD_CELL_ILLEGAL_WEIGHT_VALUE + 1) )
+    if ( lcLastSteadyWeight[ lcPrimaryIndex ] > ( LOAD_CELL_ILLEGAL_WEIGHT_VALUE + 1 ) )
     {
         // Weight has been previously saved, ok to test
         loadCellPreviousDrift = lcLastSteadyWeight[lcPrimaryIndex] - lcLastSteadyWeight[lcBackupIndex];
         driftDiff = fabs ( loadCellCurrentDrift - loadCellPreviousDrift );
     }
     // Save latest reading for next test time
-    lcLastSteadyWeight[lcPrimaryIndex] = loadCellPrimaryWeight;
-    lcLastSteadyWeight[lcBackupIndex]  = loadCellBackupWeight;
+    lcLastSteadyWeight[ lcPrimaryIndex ] = loadCellPrimaryWeight;
+    lcLastSteadyWeight[ lcBackupIndex ]  = loadCellBackupWeight;
 
-    // Check for drift out of range
-    if ( driftDiff > LOAD_CELL_PRIMARY_BACKUP_MAX_ALLOWED_DRIFT_GRAMS )
+#ifndef _RELEASE_
+    if ( getSoftwareConfigStatus( SW_CONFIG_DISABLE_ULTRAFILTRATION_ALARMS ) != SW_CONFIG_ENABLE_VALUE )
+#endif
     {
-        SET_ALARM_WITH_2_F32_DATA( ALARM_ID_HD_LOAD_CELL_PRIMARY_BACKUP_DRIFT_OUT_OF_RANGE, loadCellCurrentDrift, loadCellPreviousDrift )
+        // Check for drift out of range
+        if ( driftDiff > LOAD_CELL_PRIMARY_BACKUP_MAX_ALLOWED_DRIFT_GRAMS )
+        {
+            SET_ALARM_WITH_2_F32_DATA( ALARM_ID_HD_LOAD_CELL_PRIMARY_BACKUP_DRIFT_OUT_OF_RANGE, loadCellCurrentDrift, loadCellPreviousDrift )
+        }
     }
 }