Index: firmware/App/Controllers/PermeateTank.c
===================================================================
diff -u -r78ae22495a4f992090bf0433a1df78f7e4a5bba9 -r37ffdfd87147f589397a5f8c8f5421630ee4d879
--- firmware/App/Controllers/PermeateTank.c	(.../PermeateTank.c)	(revision 78ae22495a4f992090bf0433a1df78f7e4a5bba9)
+++ firmware/App/Controllers/PermeateTank.c	(.../PermeateTank.c)	(revision 37ffdfd87147f589397a5f8c8f5421630ee4d879)
@@ -34,7 +34,7 @@
 #define PERMEATE_TANK_PUMP_DATA_PUB_INTERVAL         ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )   ///< Interval (ms/task time) for permeate tank broadcast
 #define PERMEATE_TANK_PUBLISH_COUNTER_START_COUNT    9
 #define PERMEATE_TANK_FILL_SWITCH_MS                 ( 6 * MS_PER_SECOND )
-#define PERMEATE_TANK_FULL_SWITCH_MS                 ( 6 * MS_PER_SECOND )                       ///< state switch timeout (in ms)
+#define PERMEATE_TANK_FULL_SWITCH_MS                 ( 1 * MS_PER_SECOND )                       ///< state switch timeout (in ms)
 #define PERMEATE_TANK_FULL_TIMEOUT_MS                ( 60 * MS_PER_SECOND )
 
 // ********** private data **********
@@ -289,7 +289,7 @@
         pendingStopPermeateTankController = FALSE;
         state = PERMEATE_TANK_MANUAL_CONTROL_STATE;
     }
-    else if ( level == LEVEL_STATE_LOW )
+    else if ( ( level == LEVEL_STATE_LOW ) && ( TRUE == didTimeout( tankFullDelayTime, PERMEATE_TANK_FULL_SWITCH_MS ) ) )
     {
         state = PERMEATE_TANK_FILL_STATE;
     }