Index: firmware/App/Controllers/DialOutFlow.c
===================================================================
diff -u -r38e9e1791f490f7a95b7a7040973a6761f7603ff -rf124efbd92b66cb23ac24dccbdbef48e52cab7c5
--- firmware/App/Controllers/DialOutFlow.c	(.../DialOutFlow.c)	(revision 38e9e1791f490f7a95b7a7040973a6761f7603ff)
+++ firmware/App/Controllers/DialOutFlow.c	(.../DialOutFlow.c)	(revision f124efbd92b66cb23ac24dccbdbef48e52cab7c5)
@@ -43,6 +43,7 @@
 
 #define MAX_DIAL_OUT_FLOW_RATE                  650             ///< Maximum dialysate outlet pump flow rate in mL/min.
 #define MIN_DIAL_OUT_FLOW_RATE                  100             ///< Minimum dialysate outlet pump flow rate in mL/min.
+#define DPO_FLOW_ADJ_DUE_TO_HIGHER_INLET_PRES   0.875           ///< Adjustment factor to account for higher pump inlet pressure (than DPi pump inlet).
 
 #define MAX_DIAL_OUT_PUMP_PWM_STEP_CHANGE       0.01            ///< Maximum duty cycle change when ramping.
 #define MAX_DIAL_OUT_PUMP_PWM_DUTY_CYCLE        0.88            ///< Controller will error if PWM duty cycle > 90%, so set max to 88%.
@@ -241,11 +242,13 @@
         // verify flow rate
         if ( flowRate <= MAX_DIAL_OUT_FLOW_RATE )
         {
+            F32 adjFlow = (F32)flowRate * DPO_FLOW_ADJ_DUE_TO_HIGHER_INLET_PRES;
+
             lastGivenRate = flowRate;
             dialOutPumpDirection = dir;
             dialOutPumpControlMode = mode;
             // set PWM duty cycle target to an estimated initial target to ramp to based on target flow rate - then we'll control to flow when ramp completed
-            dialOutPumpPWMDutyCyclePct = DOP_PWM_FROM_ML_PER_MIN((F32)flowRate);
+            dialOutPumpPWMDutyCyclePct = DOP_PWM_FROM_ML_PER_MIN(adjFlow);
 
             switch ( dialOutPumpState )
             {