Index: firmware/App/Modes/Rinseback.c
===================================================================
diff -u -r61329f4338e01017c1b31d063a17a187ec12c37d -r03bf37b7bb526d0ceee01eba95d3480162cae50a
--- firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision 61329f4338e01017c1b31d063a17a187ec12c37d)
+++ firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision 03bf37b7bb526d0ceee01eba95d3480162cae50a)
@@ -38,9 +38,9 @@
 
 // ********** private definitions **********
 
-#define DEFAULT_RINSEBACK_VOLUME_ML                 300.0F                  ///< Default rinseback volume (in mL).
+#define DEFAULT_RINSEBACK_VOLUME_ML                 400.0F                  ///< 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 TARGET_ADDITIONAL_RINSEBACK_VOLUME_ML        10.0F                  ///< Target rinseback volume for an additional volume request (in mL).
+#define TARGET_ADDITIONAL_RINSEBACK_VOLUME_ML        50.0F                  ///< Target rinseback volume for an additional volume request (in mL).
 #define RINSEBACK_FLOW_RATE_ADJ_ML_MIN               25                     ///< Adjustment amount (in mL/min) to apply when user requests increase/decrease in flow rate.
 #define DEFAULT_RINSEBACK_FLOW_RATE_ML_MIN          200                     ///< Default rinseback flow rate (in mL/min).
 #define MIN_RINSEBACK_FLOW_RATE_ML_MIN              100                     ///< Minimum rinseback flow rate (in mL/min).
@@ -122,7 +122,7 @@
 {
     rinsebackState = RINSEBACK_STOP_INIT_STATE;
     rinsebackRate_mL_min = getTreatmentParameterU32( TREATMENT_PARAM_RINSEBACK_FLOW_RATE );
-    rinsebackTargetVolume_mL = TUBING_BLOOD_PRIME_VOLUME_ML + (F32)getDialyzerBloodVolume();
+    rinsebackTargetVolume_mL = DEFAULT_RINSEBACK_VOLUME_ML;
     targetRinsebackVolumePlusAdditional_mL = rinsebackTargetVolume_mL;
     rinsebackTimerCtr = 0;
     cumulativeRinsebackVolume_mL.data = 0.0;