diff --git a/include/waterlevel.h b/include/waterlevel.h
index 68c1710..ccb3d36 100644
--- a/include/waterlevel.h
+++ b/include/waterlevel.h
@@ -312,6 +312,8 @@ void waterlevel_loop(unsigned long loopmillis) {
 
         //float _meanWaterlevel=getMeanf(waterlevelMean,WATERLEVELMEAN_SIZE);
         //Serial.print("\t Dist="); Serial.print(_filteredWaterlevel); Serial.print("mm"); Serial.print("(+- "); Serial.print((getMaxf(waterlevelMean,WATERLEVELMEAN_SIZE)-getMinf(waterlevelMean,WATERLEVELMEAN_SIZE))/2.0); Serial.print(")"); Serial.print(" [mean="); Serial.print(_meanWaterlevel); Serial.print("]"); 
+      }else{
+        waterlevelA=WATERLEVEL_UNAVAILABLE;
       }
     }
     waterlevel_loop_select++;
@@ -361,6 +363,8 @@ void waterlevel_loop(unsigned long loopmillis) {
 
         //float _meanWaterlevel=getMeanf(waterlevelMean,WATERLEVELMEAN_SIZE);
         //Serial.print("\t Dist="); Serial.print(_filteredWaterlevel); Serial.print("mm"); Serial.print("(+- "); Serial.print((getMaxf(waterlevelMean,WATERLEVELMEAN_SIZE)-getMinf(waterlevelMean,WATERLEVELMEAN_SIZE))/2.0); Serial.print(")"); Serial.print(" [mean="); Serial.print(_meanWaterlevel); Serial.print("]"); 
+      }else{
+        waterlevelB=WATERLEVEL_UNAVAILABLE;
       }
       
       waterlevel_loop_select=0;