I got a hole on the bottom, about 1.5' wide. I bought a vinyl repair kit from Leslie's and tried to patch the hole. It didn't work very well. The hole has been there for at least a few days. The bottom right under the hole kind of sinked a bit. When I put on the first patch, the patch was like pressured down. And the edge of the patch just could not be glued to the bottom. I tried a second patch, which is bigger than the first one, hoping to cover the first, making the patch stronger and sealing edge. Again, the edge of the second patch wouldn't stick to the floor. And when I tried to press the patches flat using my hand, both patches got losen up. Any tips? Do I need to hire a professional?