Index: firmware/App/Controllers/ROPump.h
===================================================================
diff -u -r863f8f88c73ee5dd285242f6e131a14862b4f5c4 -r8d272582cbd2cb5fc0c6af0fead2867ce02658b0
--- firmware/App/Controllers/ROPump.h	(.../ROPump.h)	(revision 863f8f88c73ee5dd285242f6e131a14862b4f5c4)
+++ firmware/App/Controllers/ROPump.h	(.../ROPump.h)	(revision 8d272582cbd2cb5fc0c6af0fead2867ce02658b0)
@@ -37,6 +37,9 @@
 #define MAX_RO_PRESSURE_PSI                        120.0F     ///< Maximum allowed pressure that the RO pump can go to.
 #define MIN_RO_PRESSURE_PSI                        10.0F      ///< Minimum allowed pressure that the RO pump can go to.
 
+#define ROP_FLOW_TO_PWM(flow)                       ( ROP_FLOW_TO_PWM_SLOPE * flow + ROP_FLOW_TO_PWM_INTERCEPT )             ///< PWM line equation for flow.
+#define ROP_PRESSURE_TO_PWM(pres)                   ( ROP_PRESSURE_TO_PWM_SLOPE * pres + ROP_PRESSURE_TO_PWM_INTERCEPT )     ///< PWM line equation for pressure.
+
 /// RO pump data record.
 typedef struct
 {
@@ -62,7 +65,8 @@
 BOOL setROPumpTargetPressure( F32 roPressure );
 BOOL setROPumpTargetDutyCycle( F32 duty );
 
-F32 getROFeedbackDutyCycle( void );
+F32 getCurrentROPumpDutyCyclePCT( void );
+F32 getTargetROPumpDutyCyclePCT( void );
 U32 getTargetROPumpFlowRateMLPM( void );
 F32 getTargetROPumpPressure( void );