Sparky,
Been thinking about your problem.I did do a system similar to what you described except the stackable plug with float and alarm were outside the pump tank.
If I had to put the disco inside the stinky tank I would use a plastic 60 amp disco no fuses,and tapcon it to the wall.Cut off the stackable plugs and wire nut the float switches and pump inside the disco box.
Whatcha think?
Chris
