Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -rc897df59b0aeb10bb9a5988c92db6cb9b5cc8436 -r223f91366aa46bb30ea6ee49196250a298e711ff
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision c897df59b0aeb10bb9a5988c92db6cb9b5cc8436)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 223f91366aa46bb30ea6ee49196250a298e711ff)
@@ -51,7 +51,7 @@
 #define CONCENTRATE_PUMP_MIN_ALLOWED_HALL_SENSOR_COUNT      1000                                                ///< Hall sensors minimum allowed value.
 #define CONCENTRATE_PUMP_HALL_SENSORS_OUT_OF_RANGE_TIME_MS  ( 5 * MS_PER_SECOND )                               ///< Hall sensors out of range time in milliseconds.
 
-#define CONCENTRATE_PUMP_MICRO_STEPS_PER_STEP               64.0F                                                ///< Number of micro-steps ( fractions of step) per step.
+#define CONCENTRATE_PUMP_MICRO_STEPS_PER_STEP               8.0F                                                ///< Number of micro-steps ( fractions of step) per step.
 #define CONCENTRATE_PUMP_VOLUME_TO_REVOLUTION_DIENER        ( ( 1.0F / CONCENTRATE_PUMP_VOLUME_PER_REV_DIENER ) * \
                                                               ( CONCENTRATE_PUMP_STEP_PER_REV * \
                                                                 CONCENTRATE_PUMP_MICRO_STEPS_PER_STEP ) )       ///< Convert volume in to number of revolutions needed.