Index: firmware/App/Controllers/ConcentratePumps.h
===================================================================
diff -u -r5126b79e4970ffe2ed9db4cccea18a1216c78570 -r3cc784af591b14e5d292f92c796db70bcbd5a40b
--- firmware/App/Controllers/ConcentratePumps.h	(.../ConcentratePumps.h)	(revision 5126b79e4970ffe2ed9db4cccea18a1216c78570)
+++ firmware/App/Controllers/ConcentratePumps.h	(.../ConcentratePumps.h)	(revision 3cc784af591b14e5d292f92c796db70bcbd5a40b)
@@ -30,8 +30,13 @@
  */
 
 // ********** public definitions **********
-
+#ifdef __DIENER_CONC_PUMP__
+// For 100 RPM, Diener pump delivers 40ml/min,so restricing 300 RPM for now to maintain accuracy. We may allow up to 500 RPM
+// that yields 200 ml/min, but as speed increases, accuracy may drop.
+#define CONCENTRATE_PUMP_MAX_SPEED              120.0F              ///< Optimal speed for concentrate pump in mL/min
+#else
 #define CONCENTRATE_PUMP_MAX_SPEED              48.0F               ///< Maximum speed for concentrate pump in mL/min
+#endif
 #define DEFAULT_ACID_VOLUME_ML                  0.67F               ///< Acid concentrate volume in ml.
 #define DEFAULT_BICARB_VOLUME_ML                1.15F               ///< Bicarb concentrate volume in ml.
 
@@ -44,6 +49,7 @@
     D11_PUMP = 0,                                                   ///< Acid concentrate pump
     CONCENTRATEPUMPS_FIRST = D11_PUMP,                              ///< First concentrate pump in list
     D10_PUMP,                                                       ///< Bicarbonate concentrate pump
+    D76_PUMP,                                                       ///< Ultrafilteration pump
     NUM_OF_CONCENTRATE_PUMPS                                        ///< Number of concentrate pumps
 } CONCENTRATE_PUMPS_T;
 
@@ -68,6 +74,13 @@
     BOOL d10_PumpParked;                                             ///< Concentrate pump D10_Pump parked status
     BOOL d11_PumpParkFault;                                          ///< Concentrate pump D11_Pump park fault status
     BOOL d10_PumpParkFault;                                          ///< Concentrate pump D10_Pump park fault status
+    F32 d76_PumpTargetSpeed;                                         ///< Concentrate pump D76_Pump target speed
+    F32 d76_PumpCurrentSetSpeed;                                     ///< Concentrate pump D76_Pump current set speed
+    F32 d76_PumpMeasuredSpeed;                                       ///< Concentrate pump D76_Pump measured speed
+    U32 d76_PumpTargetRevCount;                                      ///< Concentrate pump D76_Pump target revolution count
+    U32 d76_PumpMeasuredRevCount;                                    ///< Concentrate pump D76_Pump measured revolution count
+    U32 d76_PumpState;                                               ///< Concentrate pump D76_Pump current state
+    F32 d76_PumpPulseUS;                                             ///< Concentrate pump D76_Pump pulse in microseconds
 } CONCENTRATE_PUMP_DATA_T;
 
 // ********** public function prototypes **********