Index: leahi_dialin/common/fp_defs.py
===================================================================
diff -u -r7ce778dc51b7dba5a7a7ca14244ed7eea7bf029d -r5681154cdaaf629c997dc05472657bf40c94d6e1
--- leahi_dialin/common/fp_defs.py	(.../fp_defs.py)	(revision 7ce778dc51b7dba5a7a7ca14244ed7eea7bf029d)
+++ leahi_dialin/common/fp_defs.py	(.../fp_defs.py)	(revision 5681154cdaaf629c997dc05472657bf40c94d6e1)
@@ -143,11 +143,12 @@
 
 @unique
 class FPFloaterLevels(DialinEnum):
-    LEVEL_STATE_LOW = 0             # Low level for the FP Floater Level Sensors
-    LEVEL_STATE_MEDIUM = 1          # Medium level for the FP Floater Level Sensors
-    LEVEL_STATE_HIGH = 2            # High level for the FP Floater Level Sensors
-    LEVEL_STATE_ILLEGAL = 3         # Illegal level for FP Floater Level Sensor (indicates investigation)
-    NUM_OF_LEVEL_STATES = 4         # Number of Level States
+    LEVEL_STATE_EMPTY = 0             # Empty level for the FP Floater Level Sensors
+    LEVEL_STATE_LOW = 1               # Low level for the FP Floater Level Sensors
+    LEVEL_STATE_MEDIUM = 2            # Medium level for the FP Floater Level Sensors
+    LEVEL_STATE_HIGH = 3              # High level for the FP Floater Level Sensors
+    LEVEL_STATE_ILLEGAL = 4           # Illegal level for FP Floater Level Sensor (indicates investigation)
+    NUM_OF_LEVEL_STATES = 5           # Number of Level States
 
 @unique
 class FPFloaterLevelSensorNames(DialinEnum):