Index: firmware/App/Monitors/Pressures.c
===================================================================
diff -u -r8e5105d7e059711084c0d30041cde756d995d62f -rd697e368e012ee528e2f57fb627db4b62fd1e360
--- firmware/App/Monitors/Pressures.c	(.../Pressures.c)	(revision 8e5105d7e059711084c0d30041cde756d995d62f)
+++ firmware/App/Monitors/Pressures.c	(.../Pressures.c)	(revision d697e368e012ee528e2f57fb627db4b62fd1e360)
@@ -212,7 +212,7 @@
 static void checkTmpPressureInRange( void );
 static void publishPressureData( void );
 static void determineArtVenPressureLimits( void );
-static void filterInlinePressureReadings( F32 artPres, F32 venPres );
+static void filterInlinePressureReadings( F32 artPres, F32 venPres, F32 tmpPres );
 static void filterBaroPressureReadings( F32 baroPresPSI );
 
 /*********************************************************************//**
@@ -587,10 +587,11 @@
     PRESSURE_STATE_T result = PRESSURE_CONTINUOUS_READ_STATE;
     F32 fpgaArtPres         = getPressure( H2_PRES ) - arterialPressureOffset;
     F32 fpgaVenPres         = getPressure( H14_PRES ) - venousPressureOffset;
+    F32 tmpPres             = fpgaVenPres - ( getDialysatePressure() * PSI_TO_MMHG );
     F32 fpgaBaroPresPSI     = getPressure( H23_PRES );
 
     // Filter inline pressure readings
-    filterInlinePressureReadings( fpgaArtPres, fpgaVenPres );
+    filterInlinePressureReadings( fpgaArtPres, fpgaVenPres, tmpPres);
     // Filter the baro pressure
     filterBaroPressureReadings( fpgaBaroPresPSI );
 
@@ -1026,7 +1027,7 @@
  * @param venPres newest venous pressure sample to add to filter
  * @return none
  *************************************************************************/
-static void filterInlinePressureReadings( F32 artPres, F32 venPres )
+static void filterInlinePressureReadings( F32 artPres, F32 venPres, F32 tmpPres )
 {
     // Long filter for arterial pressure.
     if ( artPressureReadingsLongCount >= SIZE_OF_LONG_ART_ROLLING_AVG )
@@ -1077,11 +1078,12 @@
     {
         tmpPressureReadingsLongTotal -= tmpPressureReadingsLong[ tmpPressureReadingsLongIdx ];
     }
-    tmpPressureReadingsLong[ tmpPressureReadingsLongIdx ] = tmpPressure.data;
-    tmpPressureReadingsLongTotal += tmpPressure.data;
+    tmpPressureReadingsLong[ tmpPressureReadingsLongIdx ] = tmpPres;
+    tmpPressureReadingsLongTotal += tmpPres;
     tmpPressureReadingsLongIdx = INC_WRAP( tmpPressureReadingsLongIdx, 0, SIZE_OF_LONG_TMP_ROLLING_AVG - 1 );
     tmpPressureReadingsLongCount = INC_CAP( tmpPressureReadingsLongCount, SIZE_OF_LONG_TMP_ROLLING_AVG );
     longFilteredTmpPressure = tmpPressureReadingsLongTotal / (F32)tmpPressureReadingsLongCount;
+    tmpPressure.data = getF32OverrideValue( &tmpPressure );
 
 }