diff --git a/RA_ATO/RA_ATO.h b/RA_ATO/RA_ATO.h
index 7718b4b..ade3d5d 100644
--- a/RA_ATO/RA_ATO.h
+++ b/RA_ATO/RA_ATO.h
@@ -93,6 +93,7 @@ class RA_ATOLowClass : public RA_ATOClass
 class RA_ATOWLClass : public RA_ATOClass
 {
 public:
+	unsigned long Timer;
 	inline bool IsActive() { return false; }
 };
 #endif // WATERLEVELEXPANSION || MULTIWATERLEVELEXPANSION
diff --git a/ReefAngel/ReefAngel.cpp b/ReefAngel/ReefAngel.cpp
index 20e4520..ff97fa5 100644
--- a/ReefAngel/ReefAngel.cpp
+++ b/ReefAngel/ReefAngel.cpp
@@ -1133,7 +1133,7 @@ void ReefAngelClass::WaterLevelATO(byte ATORelay, int ATOTimeout, byte LowLevel,
 	Is the low level is reached (meaning we need to top off) and are we not currently topping off
 	Then we set the timer to be now and start the topping pump
 	 */
-	if ( WaterLevel.GetLevel(Channel) < LowLevel && ( !WLATO.IsTopping()) )
+	if ( WaterLevel.GetLevel(Channel) < LowLevel && ( !WLATO.IsTopping()) && bitRead(AlertFlags,ATOTimeOutFlag)==0)
 	{
 		WLATO.Timer = millis();
 		WLATO.StartTopping();