Originally Posted by Fishguy2727
The new JBJ ATOs do not have that completely irrational feature.
They are actually built with it still, but ship with it turned off. In the instruction manual, it tells you how to take the back off and flip the switch if you desire for it to make an audible alarm with it tops up.
I have a 5 gallon reserve jug (the plastic ones readily available) on my 150 gallon reef. I have to make RODI
water in the 5 gallon twice a week (Wednesdays & Sundays). The system works great.
Had to buy a really small pump that would fit in the hole of the 5 gallon jug. Azoo makes a pump perfect for this application.