hi guys so i installed my 2nd tunze 5017. the first one the power went out and when it turned back on it read low water. powered it on and off same thing. it was installed for a day. so i returned it and got another. installed everything seemed ok. turned the power off, turned on and everything good. so i walked past my tank this morning to see that the low lvl was on again and it had dumped 2.5 gallons of top off water into the tank. the alarm sits a bit higher than the sensor since its in a sump. its 2 days old. the sensor is clean theres no bubbles going into the chambner witht the sensor. im pretty pissed bout it. anyone have any ideas? thanks