The Badger Basement Systems patented IceGuard system allows water to escape from a sump pump discharge line if the pipe happens to freeze or becomes blocked up for any reason. Even if the pipe outlet is buried deep under a foot of snow and ice, the water can escape, allowing your sump pump to keep your basement completely dry. When the discharge pipe eventually thaws out, the water will automatically flow along its usual route, and no water will escape from the IceGuard.