I did some asking around and a friend of mine has the 75 dollar jbj ato he got it from a store through amazon. it did come with the sensors/float switches. so you're in the clear. heck of a good deal too. You'll be fine with the aqua lifter the jbj ato is pretty sensitive so it only adds a tiny bit of water throughout the day. It runs from like 10-15 mins max ( i could be wrong on the time) then turns off for safety and needs to be unplugged and plugged back in to restart. I don't know how it'd be on a very large system that loses a lot of water say in the 100 gallon plus range. Of course it's not as sensitive as the tunze osmolator but it also costs half the price so pick your poison. I don't know anything about Ecoplus pumps but myself I'd be wary of using a pump that's not designed to be cycled on and off. some of them will get destroyed from that or even run in reverse at times.