Index: firmware/App/Controllers/BalancingChamber.c
===================================================================
diff -u -rfc6a157a48debd4ee8c2fb8dec8af21f5b07abe2 -rc53b6d8d57bd64bcfedf8a1bbb0d0eeab4502971
--- firmware/App/Controllers/BalancingChamber.c	(.../BalancingChamber.c)	(revision fc6a157a48debd4ee8c2fb8dec8af21f5b07abe2)
+++ firmware/App/Controllers/BalancingChamber.c	(.../BalancingChamber.c)	(revision c53b6d8d57bd64bcfedf8a1bbb0d0eeab4502971)
@@ -465,7 +465,9 @@
 static BOOL isBalChamberTimeBasedSwitching( void )
 {
     BOOL state = FALSE;
-    state = ( getD48PumpSpeed() <= BAL_CHAMBER_TIME_BASED_D48_SPEED_RPM ) ? TRUE : FALSE;
+    F32 dialFlowRate = getBalChamberActiveDialysateFlowrate();
+    //state = ( getD48PumpSpeed() <= BAL_CHAMBER_TIME_BASED_D48_SPEED_RPM ) ? TRUE : FALSE;
+    state = ( dialFlowRate <= BAL_CHAMBER_OPEN_LOOP_FLOW_RATE_BAND_3 )? TRUE : FALSE;
 
     return state;
 }