Are there any adjustments? How is the float attached to the pump? Can you post a picture of the pump?
The pump should turn on before any of the drain pipes emptying into the sump well, as seen in the sides of hte sump well, are significantly submerged.
(One morning on WRKO Radio) The tub's not clean! Let's remodel the bathroom.
(One afternoon on WRKO Radio) It's time for an oil change. I'm going to trade in the car for next year's model.