Trace Oswald, S Bengi, Yes, I agree with your comments.
Many adaptations on the basic idea are possible. It could be harvesting snow melt, or a series of these set ups. Or using fuelless pumps where possible from dams and then using
solar pumps or other renewable methods to pump water. Done at larger scale there are exciting possibilities for rapid regeneration of land, increased profits and changing
local climates by improving the small water cycle.
Slovak hydrologist Dr Michal Kravcik advocate of the 'new water paradigm,' shared the idea saying 'LOW TECH, LOW ONGOING COST, DECENTRALISED AND DEPENDABLE REGENERATIVE SOLUTION FOR RECOVERY OF THE CLIMATE' . Hopefully the next step is multiple trials in different locations and site contexts with experts. Then results can be shared for the benefit of everyone. There are many technical aspects that need to be better understood.