[paddyob]

Originally Posted by Reef Supplies

You will love the JBJ! Our clients could not be happier with the units.

here is a pretty good how to video http://www.youtube.com/watch?v=b2X0I-Zd2vo

and check out these diagrams here http://www.jbjlighting.com/prod-ato.html mode B. Id rather keep my tank safe then a $20 pump in the resevoir.

Enjoy your unit

I don't really get why mode B is better.

You would think using one sensor in the sump would be the same, with less water drop.

I understand that in mode B one sensor notices lower level..., one the max.

And in mode A... One sensor does both.... Float drops... Water rises... Float rises.

Being a first time ATOer.... Maybe I am missing something. Please fill me in.

But I do agree about a $20 pump.

Thanks