The TripleSafe Sump System has several great features. Primarily, it is a 3-pump system using one main pump for most of the work, a second pump in case the first fails or can't keep up, and a third pump that operates off of a marine-style battery backup in case the power goes out. The lid to the crock is airtight to keep mustiness and humidity in the basement controlled. It also features a floor drain and a WaterWatch alarm to alert the homeowner if all pumps have failed and the water is getting dangerously high.