Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -r2e6fa30976d3fd57cf43c7e4667d165c973c17b2 -reb40fb713ed387f87aa4d9ed9b9f42f91881064e
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 2e6fa30976d3fd57cf43c7e4667d165c973c17b2)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision eb40fb713ed387f87aa4d9ed9b9f42f91881064e)
@@ -58,7 +58,7 @@
 #define CONCENTRATE_PUMP_STEP_PERIOD_RESOLUTION             ( 0.50F / ( US_PER_SECOND * SEC_PER_MIN ) )         ///< Convert step period resolution (0.50 us) to minute.
 
 /// Volume output per pulse.
-#define CONCENTRATE_PUMP_VOLUME_PER_PULSE_DIENER            ( CONCENTRATE_PUMP_VOLUME_PER_REV / CONCENTRATE_PUMP_VOLUME_PER_REV_DIENER )
+#define CONCENTRATE_PUMP_VOLUME_PER_PULSE_DIENER            ( CONCENTRATE_PUMP_VOLUME_PER_REV_DIENER / CONCENTRATE_PUMP_PULSE_PER_REV )
 
 #define CONCENTRATE_PUMP_DATA_PUBLISH_INTERVAL              ( 1000 / TASK_GENERAL_INTERVAL )                    ///< Interval (ms/task time) at which the concentrate pump is monitored.
 #define CONCENTRATE_PUMP_CONTROL_INTERVAL                   ( 100 / TASK_GENERAL_INTERVAL )                     ///< Interval (ms/task time) at which the concentrate pump is controlled.