Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -r1fa3d19e3ca08af7cedbf481265989830dba2627 -r35f1db1a4e254a69234e50082d0cce0122e6a84c
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 1fa3d19e3ca08af7cedbf481265989830dba2627)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 35f1db1a4e254a69234e50082d0cce0122e6a84c)
@@ -23,6 +23,7 @@
 #include "Messaging.h"
 #include "ModePreTreat.h"
 #include "OperationModes.h"
+#include "PinchValve.h"
 #include "StatePreTxRecirculate.h"
 #include "SyringePump.h"
 #include "TaskGeneral.h"
@@ -54,6 +55,8 @@
 static U32 preTreatmentStateBroadcastTimerCtr;                              ///< Pre-Treatment state data broadcast timer counter.
 static OVERRIDE_U32_T preTreatmentStatePublishInterval;                     ///< Pre-Treatment state data publication interval override.
 
+static BOOL resumePreTxAlarmResponseRequest;                                ///< Flag indicates user has requested PreTx resume.
+
 // ********** private function prototypes **********
 
 static void setPreTreatStateTransition( void );                                 ///< Configure actuators and variables for Pre-Treatment state transitions.
@@ -143,11 +146,11 @@
             break;
 
         case TD_PRE_TREATMENT_SELF_TEST_DRY_STATE:
-            // currentPreTreatmentState = handleSelfTestDryState();
+            currentPreTreatmentState = handleSelfTestDryState();
             break;
 
         case TD_PRE_TREATMENT_PRIME_STATE:
-            // currentPreTreatmentState = handlePrimeState();
+            currentPreTreatmentState = handlePrimeState();
             break;
 
         case TD_PRE_TREATMENT_CONFIRM_RX_STATE:
@@ -283,8 +286,7 @@
         state = TD_PRE_TREATMENT_TUBING_SET_INSTALL_STATE;
     }
 
-    // TODO: Transition to Prime state on completion when implemented
-    // state = TD_PRE_TREATMENT_PRIME_STATE;
+    state = TD_PRE_TREATMENT_PRIME_STATE;
 
     return state;
 }
@@ -293,17 +295,21 @@
  * @brief
  * The handlePrimeState function executes the Prime state of
  * pre-treatment mode.
- * @details \b Inputs: TODO fill up if any
- * @details \b Outputs: TODO fill up if any
+ * @details \b Inputs: none
+ * @details \b Outputs: none
  * @return next Pre-Treatment mode state.
  *************************************************************************/
 static TD_PRE_TREATMENT_MODE_STATE_T handlePrimeState( void )
 {
     TD_PRE_TREATMENT_MODE_STATE_T state = TD_PRE_TREATMENT_PRIME_STATE;
 
-    // TODO: Transition to Recirculate state on completion when implemented
-    // state = TD_PRE_TREATMENT_RECIRCULATE_STATE;
+    execPrime();
 
+    if ( PRIME_COMPLETE_STATE == getCurrentPrimeState() )
+    {
+        state = TD_PRE_TREATMENT_RECIRCULATE_STATE;
+    }
+
     return state;
 }
 
@@ -501,6 +507,7 @@
             break;
 
         case ALARM_ACTION_RESUME:
+            resumePreTxAlarmResponseRequest = TRUE;
              if ( TD_PRE_TREATMENT_RECIRCULATE_STATE == currentPreTreatmentState )
              {
                 signalResumePreTxRecirculate();
@@ -515,6 +522,17 @@
 
 /*********************************************************************//**
  * @brief
+ * The signalPreTxResumeRequest function signals that user wants to resume.
+ * @details \b Inputs: resumePreTxAlarmResponseRequest
+ * @details \b Outputs: none
+ * @return TRUE if resume has been requested, FALSE if not
+ *************************************************************************/
+BOOL signalPreTxResumeRequest( void )
+{
+    return resumePreTxAlarmResponseRequest;
+}
+
+/*********************************************************************//**
  * The publishPreTreatmentStates function publishes the current
  * Pre-Treatment state and associated sub-state data to the UI.
  * @details \b Inputs: currentPreTreatmentState, preTreatmentStatePublishInterval