A book, a file, or both
The official Joseph's Well page sells a household water guide. It also offers a digital copy. gold.wf does not take that order and does not print the pages.
You are not buying a drilling crew or a pump from this site. Open their checkout for the format that is live today: print, file, or both.
Forty gallons a day is a figure from their page, not a yield we measured in a yard.