I'm just curious. I'm going to run at least 2 float switches. One that will be low water level to kick in my ATO and one that will be high water level that will shut everything off. I'm toying with a 3rd in the sump that will just be a high level for the ATO to make sure it doesn't fill more than it should. At one time, I've seen a 3 switch holder but can't seem to find it again.