Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -rc44e496a684e4ff1c1a19389873a46fd8181334e -r150ea9e4d24f2cb555495749b095d270013c30bb
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision c44e496a684e4ff1c1a19389873a46fd8181334e)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 150ea9e4d24f2cb555495749b095d270013c30bb)
@@ -40,7 +40,7 @@
 #define CONCENTRATE_PUMP_SPEED_INCREMENT                    2.0F                                                ///< Speed increase (mL/min) when controlling concentrate pump to target step speed.
 #define CONCENTRATE_PUMP_MIN_SPEED                          3.0F                                                ///< Minimum speed for concentrate pump in mL per min.
 #define CONCENTRATE_PUMP_SPD_OUT_OF_RANGE_TOL_WHEN_ON_PCT   0.02F                                               ///< Concentrate pump speed out of range tolerance when on in percentage.
-#define CONCENTRATE_PUMP_SPD_OUT_OF_RANGE_TOL_WHEN_OFF_MLPM 1.0F                                                ///< Concentrate pump speed out of range tolerance when off in mL/min.
+#define CONCENTRATE_PUMP_SPD_OUT_OF_RANGE_TOL_WHEN_SLOW_MLPM 1.0F                                               ///< Concentrate pump speed out of range tolerance when slow in mL/min.
 #define CONCENTRATE_PUMP_LOW_SPEED_THRESHOLD_MLPM           10.0F                                               ///< Concentrate pump low speed threshold in mL/min.
 #define CONCENTRATE_PUMP_ZERO_FLOW_RATE                     0xFFFF                                              ///< Pulse width value when zero flow rate or pump is off.
 
@@ -858,9 +858,9 @@
     F32 cpTargetSpeed = concentratePumps[ pumpId ].currentPumpSpeed;
     F32 cpError       = fabs( getMeasuredPumpSpeed( pumpId ) - cpTargetSpeed );
     BOOL isCpSpeedOut = FALSE;
-    F32 tolerance     = CONCENTRATE_PUMP_SPD_OUT_OF_RANGE_TOL_WHEN_OFF_MLPM;
+    F32 tolerance     = CONCENTRATE_PUMP_SPD_OUT_OF_RANGE_TOL_WHEN_SLOW_MLPM;
 
-    if ( ( cpTargetSpeed > NEARLY_ZERO ) && ( cpTargetSpeed > CONCENTRATE_PUMP_LOW_SPEED_THRESHOLD_MLPM ) )
+    if ( cpTargetSpeed > CONCENTRATE_PUMP_LOW_SPEED_THRESHOLD_MLPM )
     {
         // Check if the pump is not in the off state and if it is not and greater than the minimum threshold, divide the error
         // to target speed. If the pump is off the target speed is 0 so the speed check is done differently