Although IceGuard isn't necessarily part of our crawl space encapsulation system, it still serves a very important purpose during the winter months if your pipe is frozen and the sump pump can't pump anything out. IceGuard is designed on the outside of the house and automatically removes any water from the outside wall in case the pipe freezes. There are holes in the device that allow for the water to be ejected, but it is designed so water will not get out if the pipe is not frozen, simply because there would be no need for water to be ejected from the IceGuard if no freezing has occurred in your pipe.