[JohnS]

Bill,
Personally, I would not use PVC for the following reasons. You could check with West Systems and ask them if they recommend using their epoxies to adhere to the PVC. I would do that first, before anything else. Rememeber boat hulls flex, they all do. PVC does not flex and cracks when stressed, especially if put in a binding position as this application would be. Additonally, I would think you would want to consider running the drains out the transom, just for personal preference. I am not sure of your exact boat though so if you could post a pic, it would help us all understand a bit better...