Index: firmware/App/Modes/FPModes/FlushFilter.c
===================================================================
diff -u -rf6acd413060f862dd2bca2afeea15dab133acf7e -r4ab24710d331b6ea41ea58a4e9057ffb95724712
--- firmware/App/Modes/FPModes/FlushFilter.c	(.../FlushFilter.c)	(revision f6acd413060f862dd2bca2afeea15dab133acf7e)
+++ firmware/App/Modes/FPModes/FlushFilter.c	(.../FlushFilter.c)	(revision 4ab24710d331b6ea41ea58a4e9057ffb95724712)
@@ -34,6 +34,7 @@
 #define FILTER_FLUSH_MAX_TIMEOUT               ( 600 * MS_PER_SECOND )                      ///< Max override timeout for 10 minutes
 #define FILTER_FLUSH_DATA_PUBLISH_INTERVAL     ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )    ///< Interval (ms/task time) at which the gen water mode data published.
 #define FILTER_FLUSH_TIMEOUT                   ( 3 * SEC_PER_MIN * MS_PER_SECOND )          ///< Filter flush timeout for 3 minutes (in ms)
+#define FILTER_FLUSH_BOOST_PUMP_TGT_PSI        25                                           ///< Pressure target in PSI for the boost pump during filter flush.
 
 // ********** private data **********
 
@@ -119,14 +120,12 @@
  * @brief
  * The handleFilterFlushProgressState handles the in progress state of filter flush
  * @details \b Inputs:  filterFlushTimer
- * @details \b Outputs: none
+ * @details \b Outputs: isFlushComplete
  * @return the next state of filter flush state
  *************************************************************************/
 static FP_FILTER_FLUSH_STATE_T handleFilterFlushProgressState( void )
 {
     FP_FILTER_FLUSH_STATE_T state = FILTER_FLUSH_IN_PROGRESS;
-    BOOL isPressureOutOfRange = FALSE;
-    F32 pressureDif = 0.0;
 
 //    if ( TRUE == 1 )// TODO Alarm and Stop State Rework
 //    {
@@ -144,7 +143,7 @@
 
 /*********************************************************************//**
  * @brief
- * The handleFilterFlushProgressState handles the in progress state of filter flush
+ * The handleFilterFlushPausedState handles the pause state of filter flush
  * @details \b Inputs:  pendingStartFilterFlushRequest
  * @details \b Outputs: pendingStartFilterFlushRequest, isFlushComplete
  * @return the next state of filter flush state
@@ -187,6 +186,10 @@
             setValveState( P37_VALV, VALVE_STATE_CLOSED );
             setValveState( P39_VALV, VALVE_STATE_OPEN );
             filterFlushTimer = getMSTimerCount();
+            if ( TRUE == isBoostPumpInstalled() )
+            {
+                setBoostPumpTargetPressure( FILTER_FLUSH_BOOST_PUMP_TGT_PSI );
+            }
             break;
 
         case FILTER_FLUSH_PAUSED:
@@ -201,6 +204,11 @@
                 setValveState( P34_VALV, VALVE_STATE_CLOSED );
                 setValveState( P37_VALV, VALVE_STATE_CLOSED );
                 setValveState( P39_VALV, VALVE_STATE_CLOSED );
+                if ( TRUE == isBoostPumpInstalled() )
+                {
+                    F32 currentDutyCyclePct = getCurrentBoostPumpDutyCyclePCT();
+                    setBoostPumpTargetDutyCycle( currentDutyCyclePct  );
+                }
             }
             break;