That is unfortunate. I, admittedly, have not sealed my Allak and have experienced no leaks in the many years (and rainstorms) of using it. Funny story, when I pulled into JK late one evening i missed attaching a hook for the umbrella fly when I set the tent up. Well, it poured rain overnight and the next morning I got out of the tent and a mini swimming pool had installed itself using the fly and the crossed poles for structure. I was amazed that the fly did not leak. I may throw a line of silnet of the fly just for peace of mind.