Index: firmware/App/Controllers/DialInFlow.c
===================================================================
diff -u -ra74a66caeda4a3a9b831d9f7c698553fa6fa0882 -r1ebbe403d260d9f65695c13d6dbafbe1a93cfdde
--- firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision a74a66caeda4a3a9b831d9f7c698553fa6fa0882)
+++ firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 1ebbe403d260d9f65695c13d6dbafbe1a93cfdde)
@@ -91,7 +91,7 @@
 #define DIP_MOTOR_RPM_TO_PWM_DC_FACTOR       0.000193        ///< ~52 BP motor RPM = 1% PWM duty cycle
 #define DIP_CURRENT_ADC_TO_MA_FACTOR         3.002           ///< Conversion factor from ADC counts to mA for dialIn pump motor.
 
-#define DIP_REV_PER_LITER                    150.0           ///< Rotor revolutions per liter.
+#define DIP_REV_PER_LITER                    144.7           ///< Rotor revolutions per liter.
 /// Macro converts flow rate to motor RPM.
 #define DIP_ML_PER_MIN_TO_PUMP_RPM_FACTOR    ( DIP_REV_PER_LITER / ML_PER_LITER )
 #define DIP_GEAR_RATIO                       32.0            ///< DialIn pump motor to dialIn pump gear ratio.
@@ -201,7 +201,9 @@
 static U08 lastDialysateFlowFastPacketReadCtr = 0;                                  ///< Previous read counter for the dialysate flow fast packets.
 static U08 lastDialysateFlowSlowPacketReadCtr = 0;                                  ///< Previous read counter for the dialysate flow slow packets.
 static U08 lastDialInPumpDirectionCount = 0;                                        ///< Previous pump direction error count reported by FPGA.
+#ifndef DISABLE_PUMP_FLOW_CHECKS
 static U08 lastDialysateFlowCommErrorCount = 0;                                     ///< Previous DPi flow sensor comm error count.
+#endif
 static HD_FLOW_SENSORS_CAL_RECORD_T dialysateFlowCalRecord;                         ///< Dialysate flow sensor calibration record.
 
 // ********** private function prototypes **********
@@ -493,8 +495,8 @@
         checkDialInPumpRotor();
         // Check flow sensor signal strength
         checkDialInFlowSensorSignalStrength();
-    }
-
+    }
+
     // Publish dialIn flow data on interval
     publishDialInFlowData();
 }