Index: firmware/App/Controllers/SpentChamberFill.c
===================================================================
diff -u -r173453569b2eb31b3f19572bf5386440667b0162 -r0a1d4f769464407084d39843244af74911bbdfa5
--- firmware/App/Controllers/SpentChamberFill.c	(.../SpentChamberFill.c)	(revision 173453569b2eb31b3f19572bf5386440667b0162)
+++ firmware/App/Controllers/SpentChamberFill.c	(.../SpentChamberFill.c)	(revision 0a1d4f769464407084d39843244af74911bbdfa5)
@@ -39,6 +39,7 @@
 // ********** private definitions **********
 
 #define SPENT_CHAMBER_FILL_DATA_PUBLISH_INTERVAL           ( 250 / TASK_GENERAL_INTERVAL )      ///< Interval (ms/task time) at which the balancing chamber data published.
+#define SPENT_CHAMBER_SWITCHING_PERIOD                     59                                   ///< Spent Chamber Fill Switching Period
 
 // ********** private data **********
 
@@ -97,7 +98,7 @@
     initSpentChamberFill();
     updateBalChamberSwitchingPeriod();
     // Follow the same cycle for spent chamber fill
-    spentChamberFillSwitchingPeriod = getBalChamberSwitchingPeriod();
+    spentChamberFillSwitchingPeriod = SPENT_CHAMBER_SWITCHING_PERIOD;
 }
 
 /*********************************************************************//**
@@ -188,8 +189,7 @@
 /*********************************************************************//**
  * @brief
  * The handleSpentChamberFillWaitPressureStabilizeState  function introduces the pressure
- * stabilization period before starting the spent chamber fill
- * for state 2 fill process.
+ * stabilization period before starting the spent chamber fill.
  * @details \b Inputs: none
  * @details \b Outputs: valve states
  * @return none.
@@ -201,8 +201,8 @@
     F32 freshDialPressure = getFilteredPressure( D18_PRES );
     F32 spentDialPressure = getFilteredPressure( D51_PRES );
 
-    BOOL spentInRange =  ( ( spentDialPressure >= SPENT_DIAL_FILL_PRESSURE_MIN_PSIG ) && ( spentDialPressure <= SPENT_DIAL_FILL_PRESSURE_MAX_PSIG ) );
-    BOOL freshInRange =     ( ( freshDialPressure >= FRESH_DIAL_FILL_PRESSURE_MIN_PSIG ) && ( freshDialPressure <= FRESH_DIAL_FILL_PRESSURE_MAX_PSIG ) );
+    BOOL spentInRange = ( ( spentDialPressure >= SPENT_DIAL_FILL_PRESSURE_MIN_PSIG ) && ( spentDialPressure <= SPENT_DIAL_FILL_PRESSURE_MAX_PSIG ) );
+    BOOL freshInRange = ( ( freshDialPressure >= FRESH_DIAL_FILL_PRESSURE_MIN_PSIG ) && ( freshDialPressure <= FRESH_DIAL_FILL_PRESSURE_MAX_PSIG ) );
 
     if ( ( TRUE == spentInRange  )  && ( TRUE == freshInRange )  )
     {