hii Link haipo kwenye lugha yako, kuangalia kwa: English (en),
au tumia ufasiri wa google:  

http://www.meribah-ram-pump.com/

Meribah Ram Pump, based in Thailand, offers appropriate technology products (ram pumps and bio sand water filters) and related expertise. A downloads page,  on Meribah’s website offers plans and other information related to building and installing ram pumps and bio sand water filters.