Index: firmware/App/Modes/Rinseback.c
===================================================================
diff -u -rcc7f1bd82e346521f0102b3398bd030fb3bb0e6f -r05104b2f8b6371b100c5c31bb55c4efde50890ac
--- firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision cc7f1bd82e346521f0102b3398bd030fb3bb0e6f)
+++ firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision 05104b2f8b6371b100c5c31bb55c4efde50890ac)
@@ -38,6 +38,7 @@
 // ********** private definitions **********
 
 #define TUBING_RINSEBACK_VOLUME_ML                   80.0F                  ///< Target rinseback volume to deliver back to the patient (in mL).
+#define DEFAULT_RINSEBACK_VOLUME_ML                 300.0F                  ///< Default rinseback volume (in mL).
 #define MAX_TOTAL_ADDITIONAL_RINSEBACK_VOLUME_ML    300.0F                  ///< Maximum total additional rinseback volume allowed : all additionals (in mL).
 #define MAX_RINSEBACK_VOLUME_ERROR_ML                60.0F                  ///< Maximum error in total additional rinseback volume (20% of total).
 #define TARGET_ADDITIONAL_RINSEBACK_VOLUME_ML        10.0F                  ///< Target rinseback volume for an additional volume request (in mL).
@@ -135,7 +136,7 @@
     totalAdditionalRinsebackVolume_mL = 0.0;
     rinsebackAdditionalTimerCtr = 0;
     rinsebackPublishTimerCtr = 0;
-    rinsebackTargetVolume_mL = 300.0;
+    rinsebackTargetVolume_mL = DEFAULT_RINSEBACK_VOLUME_ML;
     resetRinsebackFlags();
 }