Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -r3417933e6edf61a914c428e2fa944b3b349272a4 -rd66ded5492dd8a760b235b12cb6767f0427ba573
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 3417933e6edf61a914c428e2fa944b3b349272a4)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision d66ded5492dd8a760b235b12cb6767f0427ba573)
@@ -36,7 +36,7 @@
 #define CONCENTRATE_PUMP_REVERSE_DIR                        0x0                                                 ///< Concentrate pump reverse direction configuration.
 
 #define CONCENTRATE_PUMP_RAMP_SPEED_INCREMENT               10.0F                                               ///< 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_MIN_SPEED                          0.0F                                                ///< Minimum speed for concentrate pump in mL per min.
 #define CONCENTRATE_PUMP_SPD_OUT_OF_RANGE_TOL_WHEN_ON_PCT   0.01F                                               ///< Concentrate pump speed out of range tolerance when on in percentage.
 #define CONCENTRATE_PUMP_CLEANING_SPD_OUT_OF_RANGE_TOL_PCT  0.05F                                               ///< Concentrate pump cleaning mode speed out of range tolerance when on in percentage.
 #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.
@@ -576,8 +576,8 @@
         }
 
         /*
-         * If 3.0 <= speed <= 60 set it
-         * If speed < 3.0 set to 0
+         * If 0.0 <= speed <= 60 set it
+         * If speed < 0.0 set to 0
          * else speed > 60 set to 60
          */
         if ( ( CONCENTRATE_PUMP_MIN_SPEED <= targetSpeed_ml_min ) && ( targetSpeed_ml_min <= CONCENTRATE_PUMP_MAX_SPEED ) )