JA1983

Guys I’ve just caught the bottom of the hot tube on a nail as I was rolling it into position and put a slice about 3 inches long in the bottom of it. Whole thing deflated in less than 10 seconds... it’s huge. Any ideas if this can be fixed or am I wasting time and money. Tried gorilla waterproof patch and and vinyl repair kit from tools station. Both of which just blew open when inflated. Having a nightmare so any assistance would be greatly appreciated!! James