Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -rfbecceef31f59ffc46d960803b1123e2ea491c6c -re0cdf49eb0f54239e5d765282e0952cea7ded1bd
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision fbecceef31f59ffc46d960803b1123e2ea491c6c)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision e0cdf49eb0f54239e5d765282e0952cea7ded1bd)
@@ -36,20 +36,20 @@
 #define CONCENTRATE_PUMP_FORWARD_DIR                        0x1                                                 ///< Concentrate pump forward direction configuration.
 #define CONCENTRATE_PUMP_REVERSE_DIR                        0x0                                                 ///< Concentrate pump reverse direction configuration.
 
-#define CONCENTRATE_PUMP_SPEED_INCREMENT                    2.0                                                 ///< Speed increase (mL/min) when controlling concentrate pump to target step speed.
-#define CONCENTRATE_PUMP_MIN_SPEED                          3.0                                                 ///< Minimum speed for concentrate pump in mL per min.
-#define CONCENTRATE_PUMP_ERROR_TOLERANCE                    0.02                                                ///< Measured speed needs to be within 2% of commanded speed.
+#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_ERROR_TOLERANCE                    0.02F                                               ///< Measured speed needs to be within 2% of commanded speed.
 #define CONCENTRATE_PUMP_ZERO_FLOW_RATE                     0xFFFF                                              ///< Pulse width value when zero flow rate or pump is off.
 
-#define CONCENTRATE_PUMP_VOLUME_PER_REV                     0.1                                                 ///< Volume output every revolution (mL).
-#define CONCENTRATE_PUMP_PULSE_PER_REV                      2.0                                                 ///< Number of pulses generate for every revolution.
-#define CONCENTRATE_PUMP_STEP_PER_REV                       200.0                                               ///< Number of steps for every revolution.
-#define CONCENTRATE_PUMP_HALL_SENSE_PERIOD_RESOLUTION       100.0                                               ///< Hall sense period resolution in microseconds.
-#define CONCENTRATE_PUMP_MIN_ALLOWED_HALL_SENSOR_COUNT      1000.0                                              ///< Hall sensors minimum allowed value.
+#define CONCENTRATE_PUMP_VOLUME_PER_REV                     0.1F                                                ///< Volume output every revolution (mL).
+#define CONCENTRATE_PUMP_PULSE_PER_REV                      2.0F                                                ///< Number of pulses generate for every revolution.
+#define CONCENTRATE_PUMP_STEP_PER_REV                       200.0F                                              ///< Number of steps for every revolution.
+#define CONCENTRATE_PUMP_HALL_SENSE_PERIOD_RESOLUTION       100.0F                                              ///< Hall sense period resolution in microseconds.
+#define CONCENTRATE_PUMP_MIN_ALLOWED_HALL_SENSOR_COUNT      1000.0F                                             ///< Hall sensors minimum allowed value.
 #define CONCENTRATE_PUMP_HALL_SENSORS_OUT_OF_RANGE_TIME_MS  5000                                                ///< Hall sensors out of range time in milliseconds.
 
 #define CONCENTRATE_PUMP_MICRO_STEPS_PER_STEP               8.0                                                 ///< Number of micro-steps ( fractions of step) per step.
-#define CONCENTRATE_PUMP_STEP_PERIOD_RESOLUTION             ( 0.5 / ( US_PER_SECOND * SEC_PER_MIN ) )           ///< Convert step period resolution (0.5 us) to minute.
+#define CONCENTRATE_PUMP_STEP_PERIOD_RESOLUTION             ( 0.5F / ( US_PER_SECOND * SEC_PER_MIN ) )          ///< Convert step period resolution (0.5 us) to minute.
 
 /// Volume output per pulse.
 #define CONCENTRATE_PUMP_VOLUME_PER_PULSE                   ( CONCENTRATE_PUMP_VOLUME_PER_REV / CONCENTRATE_PUMP_PULSE_PER_REV )