Pumping water up a tower without using electricity – The Breurram pump

Search for hydraulic ram pump or just ram pump for lots of great home made pumps and vids on their operation e.g. https://youtube.com/results?search_query=ram+pump

More diagrams here:

https://www.wot.utwente.nl/publications/breurram_uk.pdf

and a different view of the same concept here

https://www.youtube.com/watch?v=zFdyqTGx32A