Originally Posted by mr_X
They are not too powerful. the ATO will shut the pump down when it's at the correct height. Just make sure you have the top off container positioned correctly so you don't get a siphon or back siphon happening when the pump shuts down (just like a return pump).
Lol! Ya I learned that lesson with return pump the day I set up the tank.
I am doing to use 5 gallon water jug for RO
water and will be positioned below the sump height. The pipe in the sump will sit 2" above the water level. So incase too much fresh water is dumped in it will syphon back the extra.
I had paid 20$ for the aqualifter pump so I will return that and use the maxijet 1200 I have.