![File:Farmers of forty centuries - foot-power and wooden chain pump used for irrigation, China.jpg - Wikimedia Commons File:Farmers of forty centuries - foot-power and wooden chain pump used for irrigation, China.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/a/a9/Farmers_of_forty_centuries_-_foot-power_and_wooden_chain_pump_used_for_irrigation%2C_China.jpg)
File:Farmers of forty centuries - foot-power and wooden chain pump used for irrigation, China.jpg - Wikimedia Commons
![An old engraving of three men powering a Chinese chain-pump, a type of horizontal treadwheel working to raise water from a river for irrigation purposes. It is from a Victorian mechanical engineering An old engraving of three men powering a Chinese chain-pump, a type of horizontal treadwheel working to raise water from a river for irrigation purposes. It is from a Victorian mechanical engineering](https://c8.alamy.com/comp/2E25DXC/an-old-engraving-of-three-men-powering-a-chinese-chain-pump-a-type-of-horizontal-treadwheel-working-to-raise-water-from-a-river-for-irrigation-purposes-it-is-from-a-victorian-mechanical-engineering-book-of-the-1880s-to-generate-the-power-needed-here-the-workers-use-their-feet-on-paddles-or-platforms-on-the-rotating-log-they-stand-on-the-moving-paddles-or-disks-are-fixed-on-a-belt-on-the-chain-pump-these-push-the-water-in-the-submerged-hollow-tube-or-pipe-to-the-upper-end-of-the-tube-where-it-is-discharged-2E25DXC.jpg)
An old engraving of three men powering a Chinese chain-pump, a type of horizontal treadwheel working to raise water from a river for irrigation purposes. It is from a Victorian mechanical engineering
![Wonderful!! Homemade Invention Incredible Water Chain Pump Technology | Khmer Farmer Machine - YouTube Wonderful!! Homemade Invention Incredible Water Chain Pump Technology | Khmer Farmer Machine - YouTube](https://i.ytimg.com/vi/0aPj8t6ICDU/maxresdefault.jpg)
Wonderful!! Homemade Invention Incredible Water Chain Pump Technology | Khmer Farmer Machine - YouTube
![A descriptive and historical account of hydraulic and other machines for raising water, ancient and modern : with observations on various subjects connected with the mechanic arts: including the progressive development of A descriptive and historical account of hydraulic and other machines for raising water, ancient and modern : with observations on various subjects connected with the mechanic arts: including the progressive development of](https://c8.alamy.com/comp/2AX24XH/a-descriptive-and-historical-account-of-hydraulic-and-other-machines-for-raising-water-ancient-and-modern-with-observations-on-various-subjects-connected-with-the-mechanic-arts-including-the-progressive-development-of-the-steam-engine-no-64-chinese-chain-pump-these-arms-are-shaped-like-the-letter-t-and-the-upper-side-of-each-ismade-smooth-for-the-foot-to-rest-on-the-axle-turns-upon-two-uprightpi5ces-of-wood-kept-steady-by-a-pole-stretched-across-them-the-pa-chlne-being-fixed-men-treading-upon-the-projecting-arms-and-supportingthemselves-upon-the-leam-across-the-uprights-comm-2AX24XH.jpg)