How much capital is probably needed to open a drinking water purification plant?

Roughly a hundred thousand or so, but not necessarily depending on your site, local land costs.

At least 60,000 can be opened.

Do the license process; ① first well (in my local to about 10,000, and depth requirements)

② and then do the health license,

③ industrial and commercial documents (is a company or factory, the tax is not the same)

④ equipment (some of the machines are generally produced by the Shanghai Fudan more than the use of the people, the normal two years or so to be

change the booklet) is now probably a few million

⑤ Open water delivery hotline.