We have an ongoing issue with our bunk ends leaking at the seam along the end pole. We will seal them up, it will last for a few months, then start again. I've tried beeswax as well as several other suggestions after traditional seam seal repeated failures. We apply the seam sealer with a brush, making sure it goes in the all the holes, and let it dry completely. Still yet, it's a job that's never ending. We spray the entire canvas, including the seams, with 303. Never had any trouble with leaking anywhere else. So, here I am at my wits end. I have two options in my mind at this point. I am beyond caring what anything looks like. I just don't want to buy a new canvas yet. Idea #1 - Use caulking on the seams Idea #2 - Tape off the offending seams with Enternabond tape. I've giving up on things looking pretty on the outside of the camper, so not concerned about the appearance. So, would you try either one of these ideas, or have a better idea?