A discharge line from your pump is buried in a shallow trench to get the water away from your home. The problem comes with winter, sometimes snow and ice can block the outlet of the drainage pipe. Basement Systems has a solution... The Ice Guard System, automatically ejects the water away from the exterior wall in the event that the pipe freezes. It is designed with holes in it to allow this to happen, yet no water at all gets out of these openings when the pipe is not frozen.