Index: firmware/App/Controllers/DrainPump.c
===================================================================
diff -u -ra4669c80291e85fa5ce17d77ebcfd0c882831202 -r261cfc6d93996e76e26c1e9c3f5740077ad2ec22
--- firmware/App/Controllers/DrainPump.c	(.../DrainPump.c)	(revision a4669c80291e85fa5ce17d77ebcfd0c882831202)
+++ firmware/App/Controllers/DrainPump.c	(.../DrainPump.c)	(revision 261cfc6d93996e76e26c1e9c3f5740077ad2ec22)
@@ -7,8 +7,8 @@
 *
 * @file    DrainPump.c
 *
-* @author  (last)      Dara Navaei
-* @date    (last)      11-Jul-2022
+* @author  (last)      Bill Bracken
+* @date    (last)      22-Aug-2022
 *
 * @author  (original)  Sean
 * @date    (original)  08-Apr-2020
@@ -58,7 +58,7 @@
                                                    FLOAT_TO_INT_ROUNDUP_OFFSET )                                ///< RPM to DAC conversion equation.
 
 #define TOGGLE_PERIOD_RESOLUTION_SECONDS       0.000005F                                                        ///< Toggle period to resolution in seconds.
-#define ROTATIONAL_TO_TOGGLE_PERIOD_CONVERSION 4                                                                ///< Rotational to toggle period conversion coefficient.
+#define ROTATIONAL_TO_TOGGLE_PERIOD_CONVERSION 4.0F                                                             ///< Rotational to toggle period conversion coefficient.
 
 #define DRAIN_PUMP_P_COEFFICIENT               0.5F                                                             ///< P term for drain pump delta pressure control.
 #define DRAIN_PUMP_I_COEFFICIENT               1.0F                                                             ///< I term for drain pump delta pressure control.
@@ -123,7 +123,7 @@
 static DG_DRAIN_PUMP_CAL_RECORD_T drainPumpCalRecord;                                                           ///< Drain pump calibration record.
 
 /// ADC to RPM conversion coefficient or RPM to ADC conversion.
-static const F32 CONVERSION_COEFF = SEC_PER_MIN / ( 2 * TOGGLE_PERIOD_RESOLUTION_SECONDS * ROTATIONAL_TO_TOGGLE_PERIOD_CONVERSION );
+static const F32 CONVERSION_COEFF = (F32) SEC_PER_MIN / ( 2.0F * TOGGLE_PERIOD_RESOLUTION_SECONDS * ROTATIONAL_TO_TOGGLE_PERIOD_CONVERSION );
 
 // ********** private function prototypes **********