Index: FPDefs.h
===================================================================
diff -u -r6dcd6474798082bd6125fa7609c5b9d1e90c7b04 -r8cf94d51bbaedea33f8758fade8330cddbb5d34f
--- FPDefs.h	(.../FPDefs.h)	(revision 6dcd6474798082bd6125fa7609c5b9d1e90c7b04)
+++ FPDefs.h	(.../FPDefs.h)	(revision 8cf94d51bbaedea33f8758fade8330cddbb5d34f)
@@ -7,8 +7,8 @@
 *
 * @file    FPDefs.h
 *
-* @author  (last)      Michael Garthwaite
-* @date    (last)      09-Sep-2025
+* @author  (last)      “rkallala”
+* @date    (last)      15-Jan-2026
 *
 * @author  (original)  Michael Garthwaite
 * @date    (original)  02-Jul-2025
@@ -136,8 +136,8 @@
 /// Enumeration of Defeatured Pre Gen Permeate mode states.
 enum FP_Pre_GenP_Def_Mode_States
 {
-    FP_PRE_GENP_DEF_FLUSH = 0,                                              ///< Pre Gen Permeate Defeatured Flush state
-    FP_PRE_GENP_DEF_INLET_WATER_CHECK,                                      ///< Pre Gen Permeate Defeatured Inlet Water Check state
+    FP_PRE_GENP_DEF_INLET_PRESSURE_CHECK = 0,                               ///< Pre Gen Permeate Inlet Pressure Check state
+    FP_PRE_GENP_DEF_FLUSH,                                                  ///< Pre Gen Permeate Defeatured Flush state
     FP_PRE_GENP_DEF_PAUSED,                                                 ///< Defeatured Pre Gen Permeate Paused state
     NUM_OF_FP_PRE_GENP_DEF_MODE_STATES                                      ///< Number of Defeatured Pre Gen Permeate states
 };
@@ -191,6 +191,16 @@
 };
 typedef enum FP_Filter_Flush_States FP_FILTER_FLUSH_STATE_T;    ///< Type for FP Filter Flush states enumeration
 
+/// Enumeration of Filter Flush states for RO defeatured.
+enum FP_Filter_Flush_Def_States
+{
+    FILTER_FLUSH_DEF_DYNAMIC_PRESSURE_CHECK = 0,                    ///< Filter Flush in dynamic pressure state
+    FILTER_FLUSH_DEF_STATIC_PRESSURE_CHECK,                         ///< Filter flush in sttaic pressure check
+    FILTER_FLUSH_DEF_PAUSED,                                        ///< Filter Flush paused state
+    NUM_OF_FILTER_FLUSH_DEF_STATES                                  ///< Number of filter flush states
+};
+typedef enum FP_Filter_Flush_Def_States FP_FILTER_FLUSH_DEF_STATE_T;    ///< Type for FP Filter Flush states enumeration
+
 /**@}*/
 
 /**