Index: firmware/App/Controllers/DGInterface.h
===================================================================
diff -u -r92d44791a1751359f188c883b876261aed985942 -r8b824fc931d5af91a791644be64f6ad5b1e7ae7f
--- firmware/App/Controllers/DGInterface.h	(.../DGInterface.h)	(revision 92d44791a1751359f188c883b876261aed985942)
+++ firmware/App/Controllers/DGInterface.h	(.../DGInterface.h)	(revision 8b824fc931d5af91a791644be64f6ad5b1e7ae7f)
@@ -34,7 +34,6 @@
 
 #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_ILLEGAL_WEIGHT_VALUE                   -10000.0F           ///< Initial value for Load Cells, known bad value
 
 /// DG Concentrate ratios data structure.