Quote Originally Posted by aggiereefer12 View Post
I havent ever owned a tunze but have my JBJ hooked up and working for over 2 years without fail (knock on wood and crosses fingers) I am not sure I would like the fact that the manufacturer even states that the pump is "expendable," why is this? seems like a waste to me, should be an easier fix than ordering a new pump. But anyways I am happy with my JBJ.

Ooo PS: with any ATO if the feed line is submerged it will create/keep a siphon draining to w/e is lower either the tank or the ATO top off resivour.
I have both and I think the JBJ is fine for a small tank but for a big tank, the Tunze is much better. It has more fail safes than the JBJ and it would be very hard for water to end up all over your floor. Plus, I trust the optical sensor more than a float switch. That said, it is a lot more money than the JBJ.