Uncle use to AI a number of years ago but quit...his semen tank its stored at our local ABS dealer's place but it hasn't been recharge because he wasn't going to use it. If I have it re-charged should it be good to go?
There's no way to tell for certain until you charge. As long as it doesn't have any obvious damage to it put some nitrogen in see what happens. I've seen some pretty old tanks still working just fine