Index: firmware/App/Modes/Rinseback.c
===================================================================
diff -u -rb5accb82ac043938255883b6c60a6f81795569b0 -rc45ed31616b3b90de1d62d5c4b9db2339228371d
--- firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision b5accb82ac043938255883b6c60a6f81795569b0)
+++ firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision c45ed31616b3b90de1d62d5c4b9db2339228371d)
@@ -694,7 +694,7 @@
 {
     BOOL result = FALSE;
 
-    if ( ( rinsebackRate_mL_min + RINSEBACK_FLOW_RATE_ADJ_ML_MIN ) >= MIN_RINSEBACK_FLOW_RATE_ML_MIN )
+    if ( ( rinsebackRate_mL_min - RINSEBACK_FLOW_RATE_ADJ_ML_MIN ) >= MIN_RINSEBACK_FLOW_RATE_ML_MIN )
     {
         if ( RINSEBACK_RUN_STATE == rinsebackState )
         {