Problem Solved!!

This is the bottom of one of the tanks.  You can't see in this picture but we already fixed two of the seams buy welding angle iron on them.  The tanks are aluminum.

So after Larry removed the bottom of this tank Chad polished it up in preparation for a new bottom!

Larry welding up the angle iron patch.

So tanks are good as new, we patched both, one was way worse and the other just had a split seam.