top off question

[coffey18]

so iam thinking of using the Automatic Top Off System Water Level Controller by JBJ I have two questions.
1. Does anyone have any feedback on this unit and 2. what type of pump would i hook up to this can i use a powerhead?

[gws76]

I have the same water level controller, and I use a maxijet 600 powerhead for the pump. Works great.
For what it's worth, I would use the setup with two sensors in the sump. One that turns the system on and one that turns it off. That way you don't add to much water to your system or overflow it.