Ahh Good idea!
Basically, I can run 3 aqualifters one for Cal and the other 2 for ALK and MAG I have an aqua controller and could run the pumps with that.
your a genius!
I also been using these aqualifter pumps for quite some time for top-off and they work flawlessly.
make sure you use either outlet #4, or #8 (might want to double check that, but i'm pretty sure those are the ones that are recommended for low wattage pumps, etc.) if you use your controller. if not you may have issues with the controller not switching the aqualifters off. i've thought about using my acjr instead of the little wal mart timer to simplify my set up.