In hind site I should have just tried to order one and do it right instead of being impatient and DIY-it. I'm taking it as lesson learned, and I'm buying a new tank that will hopefully have a warranty and I won't have to worry about any accidents. Wish I had more trust for Craigslist but I'm not paying new prices for a used tank that I don't know is going to be solid
like I said my in law tapped it pretty hard trying to get a brace in at first and I remember cringing, it's very possible he caused a small crack when doing that so I don't know if it would have held if that wouldn't have happened. But specifically to anyone with kids, I would NOT risk an accident.