Quote Originally Posted by lisafoster2510 View Post
It has been on all night. It is a zoomed so it is adhered to the bottom of the tank. The probe for the thermostat is between the underneath of the tank and the Uth. Maybe I should take the snake out and run the Uth without the thermostat see how hot it get see if the issue is the Uth or the thermostat.
I think this would be a good test to run. I've had to set mine 5 degrees high before, but never ten.