any one know how to make.......

bigmatt1992

New member
^^^^ a auto water top off system that i can stor under my tank. mind i have a 20 long for a sump so not much space to work with.
 
The JBJ ATO is small and fairly inexpensive. I use it in my sump and it works great. You will need a reservoir of some sort to feed from. I use a 5 gallon modified "water cooler" jug, it fits perfectly right next to my sump under the stand.
 
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