I need to run a 1 1/2" pvc from my basement to the outside for a sump pump discharge. The easiest way to do this would be through a wooden window. I have drilled the hole and am ready to run the pipe. How do I secure the pipe to the window so that it does not move or twist within the hole? I want to caulk around the pipe were it enters the window on both sides. I need to secure the pipe so the caulk seal will not break. Any Ideas? Thank you in advanced.