Index: DGDefs.h
===================================================================
diff -u -rbecfbc4d11de64248085cde7f064d4e1cf63f978 -r87c28967b1b04f37e1a2ddce7b66643650e9291a
--- DGDefs.h	(.../DGDefs.h)	(revision becfbc4d11de64248085cde7f064d4e1cf63f978)
+++ DGDefs.h	(.../DGDefs.h)	(revision 87c28967b1b04f37e1a2ddce7b66643650e9291a)
@@ -158,12 +158,14 @@
 /// Enumeration of fill mode states.
 enum DG_Fill_Mode_States
 {
-    DG_FILL_MODE_STATE_START = 0,                       ///< Start fill mode state
-    DG_FILL_MODE_STATE_CHECK_INLET_WATER,               ///< Check inlet water quality state
-    DG_FILL_MODE_STATE_BICARB_PUMP_CHECK,               ///< Run bicarb concentrate pump and check conductivity range
-    DG_FILL_MODE_STATE_ACID_PUMP_CHECK,                 ///< Run acid concentrate pump and check conductivity range
-    DG_FILL_MODE_STATE_DIALYSATE_PRODUCTION,            ///< Dialysate production state
-    DG_FILL_MODE_STATE_DELIVER_DIALYSATE,               ///< Deliver dialysate state
+    DG_FILL_MODE_STATE_START = 0,                       ///< Start fill mode state
+    DG_FILL_MODE_STATE_TEST_INLET_WATER,                ///< Test inlet water quality state
+    DG_FILL_MODE_STATE_PRIME_CONCENTRATE_LINES,         ///< Prime the acid and bicarb concentrate lines
+    DG_FILL_MODE_STATE_FLUSH_BUBBLES,                   ///< Flush the bubbles in the lines state
+    DG_FILL_MODE_STATE_TEST_BICARB_CONDUCTIVITY,        ///< Test the conductivity range of the bicarb concentrate state
+    DG_FILL_MODE_STATE_TEST_ACID_CONDUCTIVITY,          ///< Test the conductivity range of the acid concentrate state
+    DG_FILL_MODE_STATE_PRODUCE_DIALYSATE,               ///< Dialysate production state
+    DG_FILL_MODE_STATE_DELIVER_DIALYSATE,               ///< Dialysate deliver state
     DG_FILL_MODE_STATE_PAUSED,                          ///< Dialysate generation pause state
     NUM_OF_DG_FILL_MODE_STATES                          ///< Number of fill mode states
 };