I have a 25 pair telephone cable that got dug up and ripped by a contractor with a bulldozer. I need to splice these back together as I cannot pull new ones through that conduit. I have enough slack to get the ends together. I am going to drop in a miniature concrete vault right there but it is going to get moisture, etc, still. Can anyone recommend a good cable splicer that would work for this and give me minimal headaches in the future?