I ran about 150 feet of plastic conduit and 4 cables about 3 years ago for a dish installation that my wife ultimately nixxed (no comments please). Well the wife is gone and I also want to cut the cord to my cable company. My question: I looked at the end of the conduit and it is full of water (yes I should have plugged it and my wife along time ago). I can blow the water out, but how do I test the integrtiy of the cable runs before I seal the pipe? It was high quality oudoor cable but for all I know it has been underwater for 3 years!