yup.. a month, i was shocked, i figured if it held for a week it would have been good for years to come.

truthfully, I don't know that I will ever put a non-brand new tank inside a house again, if it has sat for any large amount of time w/o water in it, it's good for being in a garage as a sump or refugium or something.. but thats it... after so many disasters I am scared as all get out about flooding.