Index: firmware/App/Modes/Rinseback.c
===================================================================
diff -u -rd3b7ae356aae29c99cb039713a2e120fdbce5a9c -re5d1d67106a93a6cd1b5692b586625d715732e2f
--- firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision d3b7ae356aae29c99cb039713a2e120fdbce5a9c)
+++ firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision e5d1d67106a93a6cd1b5692b586625d715732e2f)
@@ -43,10 +43,13 @@
 #define RINSEBACK_FLOW_RATE_ADJ_ML_MIN             25                       ///< Adjustment amount (in mL/min) to apply when user requests increase/decrease in flow rate.
 #define MIN_RINSEBACK_FLOW_RATE_ML_MIN             50                       ///< Minimum rinseback flow rate (in mL/min).
 #define MAX_RINSEBACK_FLOW_RATE_ML_MIN            150                       ///< Maximum rinseback flow rate (in mL/min).
+
+#ifndef DISABLE_PUMP_FLOW_CHECKS
 /// Maximum rinseback volume measured by independent means (as % of target).
 static const F32 MAX_RINSEBACK_SAFETY_VOLUME_ML = ( TARGET_RINSEBACK_VOLUME_ML * 1.2 );
 /// Minimum rinseback volume measured by independent means (as % of target).
 static const F32 MIN_RINSEBACK_SAFETY_VOLUME_ML = ( TARGET_RINSEBACK_VOLUME_ML * 0.8 );
+#endif
 
 /// Interval at which rinseback progress is to be published to UI.
 static const U32 RINSEBACK_DATA_PUBLISH_INTERVAL  = ( MS_PER_SECOND / TASK_GENERAL_INTERVAL );