Specialty Gardening: Washtub as container how to prepare?, 1 by hoa_rd

hoa_rd wrote:
A late neighbor gave me a washtub 3 years ago and while it looked great full of sweet basil the first month, I soon learned it would have made a better lily pond . . .
I finally got 2 years of weeds and moldy soil cleared out of it and want to do it right this time-- it's one of the big oblong ones (31/2 feet by 2 1/2 feet?) . . . should I drill it? In the bottom or sides?
Should I prepare the bottom to catch the moisture somehow?
Thanks!!!

(by the way what's an earth box. . . )